Specification_506_Rev_1_Dec_12_2013.pdf

Shore Infrastructure Logistics Center (SILC)

ATON/MER Asset Line

United States Coast Guard

Washington, D.C.

December 12, 2013

Light Emitting Diode (LED) Marine Lanterns for Lighted Aids to Navigation

Specification No. 506

Revision 1

1. General. This specification is for the purchase of established, tested, and proven commercial off-the-shelf (COTS) LED lanterns for use as lighted marine aids to navigation. This is not a development contract. However, improved, revised, or upgraded versions of existing tested and established lanterns will be considered. LED lanterns will be evaluated not only on the performance data submitted with the proposals to prove compliance to this specification, but also on previous customer satisfaction information and/or additional documentation submitted showing a proven track record of reliability. For the externally-powered LED lanterns (a.k.a standalone LED lanterns) a key evaluation criteria will be the economic impact the proposed lantern will have, if any, on the existing USCG solar power system. If the proposed lantern will require a larger (and therefore a more expensive) power system to operate than the one specified in this document, the proposed lantern will be rejected. Multiple awards will be considered.

1.1 Products. The following products are being sought for purchase:

Externally-Powered Standalone LED Lantern

Self-Contained LED Lantern (small solar power system)

Self-Contained LED Lantern (large solar power system)

High-Intensity Self-Contained LED Lantern (small solar power system)

High-Intensity Self-Contained LED Lantern (large solar power system)

High-Intensity Multi-Tier 10-Degree Externally-Powered Standalone LED Lantern (with optional Stack Mount)

High-Intensity Multi-Tier 5-Degree Externally-Powered Standalone LED Lantern (with optional Stack Mount)

High-Intensity Multi-Tier 2.5-Degree Externally-Powered Standalone LED Lantern (with optional Stack Mount)

Externally-Powered Standalone LED Range Lantern (with optional mounting kit for a passing light)

High-Intensity Externally-Powered Standalone LED Range Lantern

2. Definitions and References.

2.1 Definitions.

2.1.1 Fixed aid lantern. A fixed aid lantern is a lighted beacon placed on a structure fixed to the ground and used as a maritime aid to navigation. It provides an omnidirectional light signal, white, yellow, red, or green in color, visible to the mariner at a nominal range of 3 to 14 nautical miles (nm).

2.1.2 Buoy lantern. A buoy lantern is a lighted beacon placed on a buoy and used as a maritime aid to navigation. It provides an omnidirectional light signal, red or green in color, visible to the mariner at a nominal range of 3 to 6 nautical miles (nm).

2.1.3 Range Lantern. A stationary searchlight-like lantern mounted on a tower on the extension of the centerline of a channel. Used in conjunction with a second range lantern mounted behind and higher than the front range lantern. Delineates the centerline of the channel when the lights are vertically aligned.

2.1.4 Self-contained lantern. A self-contained lantern is a lantern that integrates into a single environmentally-protected package all components necessary to independently power and operate the lantern over an extended period of time. A self-contained lantern integrates all components into a single, cohesive package. When installed on a fixed aid or buoy, a self-contained lantern does not need to be connected to any other equipment to operate. Some of the components that comprise a self-contained LED lantern are LEDs, electronic power/timer controllers, solar power generation (i.e., solar panels) and regulation, energy storage devices

(i.e., batteries), and a housing which incorporates the light lensing.

2.1.5 Externally-Powered Standalone Lantern. An LED lantern that requires only an external 12 VDC power source to operate, but is fully protected from the environment without requiring a separate protective housing of any type for normal operation.

2.1.6 Optic Head. The lantern’s optic head consists of the LEDs and the housing which incorporates the necessary lensing to control the vertical light distribution (and horizontal divergence for range lanterns). The electronic power/timer controllers and all other equipment needed to produce the light signal, given power from the battery or an external 12 VDC power source, may be housed in a separate assembly that is part of the lantern.

2.1.7 Solar Power System. The solar power system is comprised of solar panels that collect solar photovoltaic energy and produce electrical energy, the battery that receives electrical energy from the solar panels and delivers electrical power to the optic head, and associated wiring and electronic control systems to prevent overcharging the battery (charge regulator).

2.1.8 Autonomy. The autonomy of a lantern’s battery is the time - in days - a battery will take to discharge from a fully-charged state (100% state of charge) to a 20% state of charge without any energy input from the solar panels or any other power source and at a rate of discharge dependent on a specified lantern intensity.

2.1.9 Fan beam. A fan beam is one in which the light output of a lantern is concentrated in the horizontal plane. It is the beam that must be projected when a fixed light of uniform intensity around the horizon is required. A fan beam is an omnidirectional beam.

2.1.10 Spread Lens. Spread lenses are sometimes used on range lanterns to achieve additional horizontal divergence and vertical divergence. Various lenses are available to provide horizontal divergence up to 30 degrees (typical).

2.1.11 Characteristic. To aid in recognition and conspicuity, and to reduce power consumption, lights are generally flashed. Required flash rhythms are detailed in Section 3.

2.1.12 Duty cycle. For a given characteristic, the amount of time a light is energized during one cycle divided by the total time period of the cycle. Example: a Quick Flash light is energized for 0.3 seconds, then de-energized for 0.7 seconds. The period is 0.3 + 0.7 = 1.0 second. The duty cycle is 0.3 second / 1.0 second x 100 = 30%.

2.1.13 Luminous intensity (intensity). The luminous flux over a solid angle for a source, measured in units of candela, as defined by The International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA), in the IALA International Dictionary of Marine Navigation, Chapter 2, Section 2-1, Definition 2-1-035.

2.1.14 Peak luminous intensity (peak intensity). The maximum luminous intensity that a light source is capable of providing, in a given direction.

2.1.15 Equivalent peak luminous intensity (equivalent peak intensity). The Talbot-Plateau Law states that if a light is rapidly flashed, at a rate so that it appears fused to the observer, the light will match in brightness a steady light that has the same time-average luminance. Therefore, for an LED source modulated at some frequency above the fusion frequency, an equivalent peak intensity will be calculated using the following equation:

where:

Ieq = equivalent peak intensity, in candela (cd) T = the time period over which the light signal is rapidly flashed I = luminous intensity, in candela (cd)

2.1.16 Effective luminous intensity (effective intensity). The perceived intensity of a flashing light by the human eye is lower than that of a fixed light of equal peak intensity due to the nature of detecting light by the human eye. The International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA) “Determination and Calculation of Effective Intensity” E-200-4 December 2008, describes several methods for calculating the effective intensity of a rhythmic light. For the purposes of this specification, the Coast Guard will use the method of Schmidt- Clausen. The Coast Guard will assume that the Intensity vs. Time profile for a flashed LED is a square wave. Using the Schmidt-Clausen method, and assuming a square wave Intensity vs.

Time profile, the effective intensity (Ie) of a flashing LED signal is given by:

where:

Ie = effective intensity, in candela (cd) Io = peak intensity, in candela (cd), of the light signal (or the equivalent peak intensity for a rapidly flashed light) c = a visual time constant, taken to be 0.2 seconds for night-time observations Δt = the shortest “on” time for a given characteristic

2.1.17 Flicker fusion frequency (FFF). There is a frequency at which a rapidly pulsed light signal will transition from an appearance of flicker to a steady state. The frequency at which that transition occurs is the flicker fusion frequency (FFF). Pulsed light signals operating below this frequency will be noted as flickering by observers. Factors which impact on the FFF include the intensity of the light signal, the ambient illumination level of the background, the observable area of the signal, and the level of dark adaptation of the observer. Fusion of a flickering light may occur at frequencies as low as 10 Hz, to as much as 100 Hz. For the purposes of this specification, a frequency of 100 Hz or greater shall be considered sufficient to ensure fusion of light pulses at detection levels.

2.1.18 Absolute Maximum Current Rating. Maximum continuous current (and therefore maximum power dissipation) that an individual LED can endure before exceeding the maximum specified junction temperature. Junction temperatures which exceed the maximum rating adversely impact the LED’s reliability, longevity, as well as its predicted luminous performance and may result in device failure.

2.2 References.

2.2.1 The International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA)

Publications.

2.2.1.1 IALA International Dictionary of Marine Navigation, original IALA Dictionary (2009 Edition).

2.2.1.2 IALA Recommendation E-200-4 “Marine Signal Lights, Part 4 - Determination and Calculation of

Effective Intensity” December 2008.

2.2.1.3 IALA Recommendation E-200-1 “Marine Signal Lights, Part 1 - Colours” December 2008.

2.2.2 Military Standards.

2.2.2.1 MIL-STD-202G, Method 104A, Immersion Test, October 1956.

2.2.2.2 MIL-STD-202G, Method 213B, Shock Test, April 1973.

2.2.2.3 MIL-STD-202G, Method 204D, Vibration Test, April 1980.

2.2.3 Industry Standards.

2.2.3.1 EN 61000-4-2:2001 Electrostatic Discharge Immunity Test.

3. Performance Requirements.

3.1 Optical Performance.

3.1.1 Intensity Measurements. Intensities are to be measured after values stabilize to account for intensity reduction due to LED junction heating. Intensity requirements shall be met by a lantern operating through the full range of ambient operating temperatures specified in Section

3.4.1. Intensities shall be determined by the value met or exceeded by 90% of the values measured in the horizontal focal plane. Lanterns that use rapidly pulsed LEDs to provide the light signal shall operate at frequencies equal to or greater than 100 Hz. For lanterns using rapidly pulsed LEDs, the time-dependent output of the lantern shall be recorded, and the Talbot-Plateau Law shall be used to determine the equivalent peak intensity.

3.1.2 Effective Intensity. Use the Schmidt-Clausen method to calculate effective luminous intensity.

Based on the assumption that the LED intensity-vs.-time profile is a square wave, the Schmidt- Clausen method will yield an effective intensity (Ie):

Where:

Io = the 90th percentile fixed intensity in the horizontal focal plane (as recorded on a polar plot) t = the flash length in seconds

3.1.3 Intensity and effective intensity. Fixed Intensity and effective intensity for each type of lantern are detailed in the Data Sheets in Section 6. Variable intensities are required, and an external programmer may be used to set. Intensity shall not be reduced below the set value based on duty cycle.

3.1.4 Vertical Divergence. The lantern shall have a minimum vertical divergence such that the angle between the 50% intensity points above and below the focal plane meets or exceeds the salient characteristics in the Data Sheets in Section 6.

3.1.5 Horizontal Uniformity of Output (for omnidirectional lights only). The lantern shall produce an omnidirectional horizontal fan beam. The peak intensity of the beam, in any direction in the focal plane (except in the direction of a lens molding seam), shall not vary by more than ± 20% from the mean. This may require sorting of LEDs. The intensity profile about any lens molding seam shall not be less than 60% of the mean horizontal output over an angle of not more than 2°.

3.1.6 Beam Alignment. The projected beam(s) from the LED(s) referenced to the mounting surface of the lantern shall be within ± ½ degree of the optical axis, defined as a line parallel to the mounting surface.

3.1.7 Degradation. The lantern shall be designed to maintain at least 80% of the effective intensity over 6 years of operation when operated at night with a 30% duty cycle.

3.1.8 Signal Colors. The chromaticity of the white, yellow, red, and green colors provided by the lanterns shall lie within the International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA) temporary region. Corner chromaticity coordinates for the temporary region are provided in IALA Recommendation E-200-1 “Marine Signal Lights, Part 1 - Colours” December 2008.

3.1.9 Daylight Control. The lantern shall switch on and off at sunset and sunrise, respectively. The lantern shall switch on whenever the ambient illumination, measured in the horizontal plane, falls below 250 ± 50 lux. The lantern shall not switch off until the ambient illumination rises above 320 ± 50 lux. The daylight control, and associated illumination control circuitry shall be designed so that when ambient light levels are below the ambient “turn-on” level, the operation of the lantern and its proper display of the desired flash characteristic shall not be affected by the light from the lantern.

3.1.10 Flash Characteristic Control System. Each lantern shall be capable of producing all standard U.S.

Coast Guard flash characteristics, as outlined below, including one custom-programmable characteristic that will be used for custom flash rhythms, and shall include control circuitry to permit field selection of any desired characteristic. The characteristics shall be incorporated into the lantern and may be accessed via dip or rotary switches or an IR programmer. The various characteristics which the lantern must be capable of displaying are shown in the table below.

Timing Timing Sequence (Sec) Duty

Rhythm F 1 E 1 F 2 E 2 F 3 E 3 Cycle

FL15 (1) 1.00 14.00 0.07

FL10(1) 1.00 9.00 0.10

FL 6 (.6) 0.60 5.40 0.10

FL5 (.5) 0.50 4.50 0.10

FL 4 (.4) 0.40 3.60 0.10

FL 2.5 (.3) 0.30 2.20 0.12

Q 0.30 0.70 0.30

FL (2) 5 0.40 0.60 0.40 3.60 0.16

FL (2) 6 1.00 1.00 1.00 3.00 0.33

FL (2+1) 6 0.30 0.40 0.30 1.20 0.30 3.50 0.15

Mo (A) 0.40 0.60 2.00 5.00 0.30 Iso 6 3.00 3.00 0.50 Occ 4 3.00 1.00 0.75

FL 6 (1) 1.00 5.00 0.17

FL 4 (1) 1.00 3.00 0.25

FL 2.5 (1) 1.00 1.50 0.40

Iso 2 1.00 1.00 0.50 Iso 4 2.00 2.00 0.50

FIXED

Custom

Continuous

1.00

3.1.11 Light Intensity Control System. At each of the light intensity settings the LED driver shall be designed to obtain predictable and matched luminous intensity and chromaticity from each LED, and to avoid exceeding the LED’s Absolute Maximum Current Rating and compromising reliability and longevity. The luminous intensity and chromaticity shall remain relatively constant over the full range of environmental operating conditions and for all light characteristics specified in this specification.

3.2 Power and Control Systems.

3.2.1 Input Power (using external power systems). The LED lantern shall operate properly with input voltages between +10.5 and +18 VDC. The nominal input shall be +12 VDC, as provided by existing U.S. Coast Guard solar-power systems outfitted with lead-acid batteries or 12 VDC power supplies. When the LED lantern is commanded off (daytime or during eclipse), the lantern’s quiescent current shall not exceed the maximum values presented in the Data Sheets in Section 6.1. Likewise, when the LED lantern is commanded on, day or night, the power consumption shall not exceed the maximum values presented in the Data Sheets in Section 6.1.

3.2.1.1 Synchronize Control (all but self-contained lanterns). The lanterns shall have provisions for synchronization to another lantern covered under this specification and shall operate in accordance with the following requirements: The synchronized lantern shall mimic the flash rhythm of the main lantern and shall turn off/on when commanded by the daylight control connected to the main lantern; a synchronized lantern may have a day power requirement that equals its night eclipse power consumption; the synchronization control shall be capable of receiving a timed input of +5 to +13 VDC coinciding with the flash of the main light with a decay time of less than 100 milliseconds; and the synchronization control shall be capable of driving a one (1) milliamp load.

3.2.1.2 GPS Synchronize Control (all lanterns – optional). The lanterns may have provisions for synchronization to another lantern, as stated in 3.2.1.1, using the GPS system. To establish a standard among the LED lanterns submitted for consideration and in order to ensure that all compliant lanterns remain synchronizable to one another, despite make and model, the synchronization reference time (GPS Epoch) for all lanterns shall reset to zero nightly at midnight.

3.2.2 Integrated Solar Power System (self-contained lanterns). The lantern shall include any and all devices required for power generation and energy storage necessary to produce and emit the required light signals. One or two integrated power systems can fulfill the requirements (i.e., small and large).

3.2.3 Batteries (Self-Contained Lanterns Only). Battery service life shall be not less than four years

(where one year of service is considered to equal approximately 4,800 hours of lantern use) while operating in the harsh environmental conditions specified Section 3.4. The battery shall be capable of operating at -30° C and down to a low state-of-charge of 75% without freezing and without being prone to recharge problems. Battery Material Safety Data Sheets (MSDS) shall be provided with each self-contained lantern covering the specific battery type used inside the lantern.

3.2.3.1 Maintenance Free Battery. The battery shall be maintenance-free.

3.2.3.2 Commercially Available Battery. The battery (or replacement battery) shall be U.S. sourced so that it can be purchased and replaced by Coast Guard servicing personnel in a timely and cost effective manner. It shall be mounted in the lantern in a manner that will allow replacement of the battery. The battery shall be secured using standard hold-down hardware and electrically connected with commercial fasteners (for example, ring lugs or other slip-on connectors). An externally accessible, weather-proof charging socket is optional.

3.2.3.3 Ready For Use. The lantern shall be shipped with the battery installed and completely ready for use (except for initial charging). For self-contained lanterns, a storage mode feature is required to prevent inadvertent operation while being shipped in a box or stored prior to use.

3.2.3.4 No-Leak. The battery shall not leak when stored for an extended period of time in any orientation.

3.3 Service Life and Maintenance. For purposes of calculation, one year of service is considered to equal approximately 4,800 hours of lantern use. Depending on the duty cycle, and whether a rapidly pulsed signal is used, the actual emitting time for the LEDs will range from about 240 to 1440 hours. The replacement interval is defined for the purposes of this specification as the mean time for total lumen output of the lantern to be reduced to 80% of initial (rated) output, due to LED failure or fatigue.

3.3.1 Service Life. The lantern shall have a service life, based on producing a characteristic with a 30% duty cycle, of not less than 6 years.

3.3.2 Maintenance. The lantern and all of its components shall not require preventive maintenance other than periodic cleaning of external surfaces. The design of the lantern shall be such as to restrict the ability of birds to roost on the lantern or any of its components.

3.3.3 Labeling. The lanterns’ power input terminals and/or wires shall be labeled either “+” and “-” or colored “black” and “white,” respectively (for input power). Wires for the daylight control and sync, if applicable, shall be clearly labeled as well. The label for the lantern shall include the model, serial number, manufacturer’s name, and LED version (if applicable). Power and intensity settings do not need to be displayed.

3.4 Environment. The lantern shall meet or exceed all the requirements of this specification under the environmental conditions outlined below. Results from in-house testing are acceptable if documented and available for review; otherwise a certificate from an accredited laboratory is required.

3.4.1 Ambient Temperature. Exposure to temperatures from -30° to +50° C.

3.4.2 Humidity. Exposure to relative humidity from 0 to 100%, including driving rain at 45° from vertical.

3.4.3 Immersion. Immersion in hot and cold fresh tap water for 15 minutes in accordance with MIL-

STD-202G, method 104A, condition A or B.

3.4.4 Icing. Exposure to ice loading up to 22 kg per square meter.

3.4.5 Wind Speed. Exposure to wind speeds up to 140 knots.

3.4.6 Salt Air and Seawater Spray. Continuous exposure to salt air and seawater spray.

3.4.7 Ultraviolet exposure. All of the external components of the lantern shall be designed to operate under and withstand continuous exposure to ultraviolet light for the duration of the advertised service life of the lantern, as is typically encountered at sea level, at 20° North latitude.

3.4.8 Shock and Vibration. Omnidirectional lanterns shall be constructed to operate under and withstand continuous exposure to the shock and vibration experienced on buoys and single-pile aids to navigation structures. Omnidirectional lanterns shall not be damaged and continue to operate after being exposed to MIL-STD-202G, Method 213B, 30Gs Minimum vertical and 35G’s horizontal shock, and MIL-STD-202G, Method 204D, condition B limited to 5G’s vibration in all axes but with duration reduced from twelve to three 20-minute cycles in each of three mutually perpendicular axes (x, y, & z) for a total of nine complete cycles (180 minutes total).

3.4.9 Electromagnetic Interference. The lantern shall not be susceptible to interference from radiating devices normally found in the marine environment. This includes signals from VHF and UHF radio and marine radar. The lantern shall also incorporate protection from static discharges of up to 25K volts, as may occur due to nearby lightning strikes. Tests shall be in accordance with EN 61000-4-2:2001 Electrostatic Discharge Immunity, Level 4, 15kV in air, Class A or B.

3.5 Size and Mass (self-contained lanterns). The lanterns shall be made of lightweight, yet durable, materials. The lanterns shall not exceed the maximum allowances for size and weight specified below.

3.5.1 Maximum Height (self-contained lanterns). The overall height of the lantern (including adapter plate if applicable – see Section 3.6.1.3) and including bird deterrents shall not exceed 66 cm.

3.5.2 [Removed and Reserved]

3.5.3 Height of Solar Panels (self-contained lanterns). The bottom edge of the solar panels shall be not less than 1 cm above the top surface of the lantern’s mounting base.

3.5.4 Mass (self-contained lanterns). The mass of the complete lantern shall not exceed 20 kg.

3.6 Mounting Provisions.

3.6.1 Mounting provisions (omnidirectional lanterns). Omnidirectional lanterns shall be designed so that they can be attached to the structure or buoy using three bolts, equally spaced on a 200-mm diameter bolt-hole circle. Any of the following three mounting methods listed below is acceptable:

3.6.1.1 Mounting method 1. The base of the lantern shall have three, unthreaded bolt holes, equally spaced on a 200 mm diameter bolt circle. The bolt holes shall be 16 ± 1 mm in diameter and may be elongated to form closed, arced slots. There shall be not less than 5 cm of working space above the bolt holes to allow installation of ½”-13 UNC bolts or nuts and to secure with conventional hand tools. The bottom of the lantern base shall be parallel to the focal plane of the lantern.

3.6.1.2 Mounting method 2. The base of the lantern shall have three, threaded bolt holes, equally spaced on a 200 mm diameter bolt circle. The threaded bolt holes shall accept ½”-13 UNC bolts that will be inserted straight up through holes in the buoy’s lantern mounting plate then into the lantern’s threaded bolt holes. The threaded bolt holes shall be not less than 2 inches deep. The depth of the bolt holes and the material composition of the threaded bolt holes shall be such that the lantern can withstand the environmental conditions specified in Section 3.4. The bottom of the lantern base shall be parallel to the focal plane of the lantern.

3.6.1.3 Mounting method 3. The lantern can be supplied with an adapter to be positioned between the lantern and the structure’s lantern mounting plate. The lantern shall be bolted to the top of the adapter using hardware supplied by the manufacturer. The adapter shall be designed so that it can be attached to the structure’s lantern mounting plate using either Mounting Method 1 or 2 described in Sections 3.6.1.1 or 3.6.1.2 respectively. The bottom of the adapter shall be parallel to the focal plane of the lantern. If an adapter is used, the lantern/adapter combination shall meet all requirements of this specification, including the size and weight requirements in Section 3.5.

3.6.2 Mounting Provisions (Range Lanterns). Lanterns shall have a 2- or 3-hole mount so that the base or optic head can be leveled in the direction of the projected beam. Holes shall be ⅜” (minimum) to ½” (maximum) in diameter to facilitate the use of stainless steel leveling bolts and hardware. With the base secured to the structure, the optic head shall be capable of being swiveled to align with the channel centerline.

4. Inspection of Supplies—Fixed-Price. The Contractor shall provide and maintain an inspection system acceptable to the Government covering supplies under this specification and shall tender to the Government for acceptance only supplies that have been inspected in accordance with the inspection system and have been found by the Contractor to be in conformity with the specification requirements. As part of the system, the Contractor shall prepare records evidencing all inspections made under the system and the outcome. These records shall be kept complete and made available to the Government during contract performance and for as long afterwards as the contract requires. The Government may perform reviews and evaluations as reasonably necessary to ascertain compliance with this paragraph. These reviews and evaluations will be conducted in a manner that will not unduly delay the contract work. The right of review, whether exercised or not, does not relieve the Contractor of the obligations under the contract. The Government has the right to inspect and test all supplies called for by the contract, to the extent practicable, at all places and times, including the period of manufacture, and in any event before acceptance. The Government will perform inspections and tests in a manner that will not unduly delay the work. The Government assumes no contractual obligation to perform any inspection and test for the benefit of the Contractor. A repair or replacement warranty for a period of one-year to cover material defects and/or defective operation is required and shall apply to all LED lanterns offered for consideration.

5. Packaging. The lanterns shall be packaged individually in accordance with standard commercial practice, suitable for reshipment.

5.1 Marking. The lantern packages shall clearly marked with the contents (example: “Red LED lantern Model XYZ”), manufacturer, weight, unit quantity, and if applicable, stock number and bar code (provided after contract award for items stock at the USCG warehouse).

6. Data Sheets. The following Data Sheets describe the USCG’s operational requirements. In addition to meeting all the requirements of Section 3, each LED Lantern submitted for consideration that meets or exceeds the performance requirements and specific salient characteristics in each Data Sheet will be considered.

6.1 Data Sheets. (Attached)

6.1.1 Data Sheet 1. Externally-Powered Standalone LED Lantern.

6.1.2 Data Sheet 2. Self-Contained LED Lantern.

6.1.3 Data Sheet 3. High-Intensity Self-Contained LED Lantern.

6.1.4 Data Sheet 4. High-Intensity Multi-Tier 10, 5, and 2.5-Degree Externally-Powered Standalone

LED Lantern (with optional Stack Mount).

6.1.5 Data Sheet 5. Externally-Powered Standalone LED Range Lantern (with optional mounting kit for a passing light).

6.1.6 Data Sheet 6. High-Intensity Externally-Powered Standalone LED Range Lantern.

Data Sheet 1 Externally-Powered Standalone LED Lantern

Salient Characteristics

General: Externally-Powered Standalone LED Lanterns submitted for consideration that meet or exceed the requirements in this Data Sheet along with all the requirements of Section 3 of this Specification will be considered.

Features: • Standalone LED lanterns include the light source and control system requiring only an external 12 VDC power source to operate.

• Fan beam.

• Lantern available in the following colors: white, red, green, and yellow.

Performance:

Adjustable intensity for all flash rhythms: 10 to 77 candelas minimum effective intensity adjustability range for white, red, and green; and 10 to 54 candelas minimum effective intensity adjustability range for yellow.

Vertical Divergence: ± 3.5 degrees minimum to 50% peak intensity.

Power Consumption: In order to minimize the impact on the power system of existing USCG lighted aid installations during a lantern replacement, the maximum allowed power consumption values are listed below.

Power consumption at +12.0 VDC input, +20 to +25 deg C, and operating at a Fixed intensity of 77 candelas ± 2 cd:

White - 0.150 amps max

Yellow - 0.300 amps max

Red - 0.186 amps max

Green - 0.192 amps max

Quiescent current (all colors) - 10 ma maximum (night), 5 ma maximum (day)

Sync Ability: The LED Lantern shall have the capability to be synchronized to the flash rhythm of a separate, external Coast Guard lantern via a timed +5 to +13 VDC pulse. If necessary, an optional sync module (installed inside the lantern) may be used to invert the incoming sync pulse to establish sync compatibility between the two lanterns.

Data Sheet 2

Self-Contained LED Lantern

Salient Characteristics

General: Self-Contained LED Lanterns submitted for consideration that meet or exceed the requirements in this Data Sheet along with all the requirements of Section 3 of this

Specification will be considered.

Features: • Self-contained LED lanterns include the light source, solar panels, battery(s), and control system as an integrated package.

• Fan beam.

• Lantern available in the following colors: white, red, green, and yellow.

• Minimum of two solar power system sizes required: small and large.

Performance:

Adjustable intensity for all flash rhythms: 10 to 77 candelas minimum effective intensity adjustability range for white, red, and green; and 10 to 54 candelas minimum effective intensity adjustability range for yellow.

Vertical Divergence: ± 3.5 degrees minimum to 50% peak intensity.

Small Solar Power System: The lantern with the small power system shall be capable of operating year-round in Portland, ME with a 10% duty cycle (e.g., FL4(.4) rhythm) at a setting that will provide at least 43 candelas effective intensity (all signal colors). Additionally, the battery shall have an autonomy of not less than 20 days; and, on a daily basis, the solar panels shall be capable of generating at least as much energy as will be consumed by the lantern [i.e. Ein (energy in) shall be equal to or greater than Eout (energy out)].

Large Solar Power System: The lantern with the large power system shall be capable of operating year-round in Portland, ME with a 30% duty cycle (e.g., Q Flash rhythm) at a setting that will provide at least 43 candelas effective intensity (white, red, and green signal colors).

Additionally, the battery shall have an autonomy of not less than 20 days; and, on a daily basis, the solar panels shall be capable of generating at least as much energy as will be consumed by the lantern [i.e. Ein (energy in) shall be equal to or greater than Eout (energy out)].

Storage: The lantern shall be capable of being placed in sleep mode to prevent operation while in transit or storage.

Charge Port: An optional charge port for charging the battery(s) from an external power source is available.

For autonomy and energy calculations, see the next page.

Autonomy and Energy Calculations (for Self-Contained and High-Intensity Self-Contained LED lanterns)

The daily energy consumption shall be calculated as follows:

Eout = HoursDarkness x Duty Cycle x ILamp + 24 hours x Q where: Eout is the lantern’s daily energy consumption in Amp-hours.

HoursDarkness is hours of darkness. For Portland, ME, set HoursDarkness = 15.25 hours.

Duty Cycle is the duty cycle of the light characteristic.

ILamp is the lantern’s current draw while the light is on. For a light that is pulsed, ILamp is the time-averaged current over the period of the flash. ILamp shall be calculated or measured for a lantern operating at the specified duty cycle and at an ambient (i.e.

external to the lantern) temperature of minus 10° C. The value used for ILamp shall be such that from a random selection of lanterns, 90% or more of the measured current values shall be less than ILamp at the specified duty cycle and ambient temperature.

Q is the quiescent current in amps.

Autonomy shall be calculated as follows:

Autonomy = (0.8 x Rated Battery Capacity) / Eout where: Autonomy is the lantern’s autonomy in days.

Rated Battery Capacity is the manufacturer’s rated battery capacity in Amp-hours at a temperature of -11° C (12° F).

Eout is the lantern’s daily energy consumption in Amp-hours, as calculated above.

Daily energy production calculations. The lantern’s daily energy production shall be calculated by summing the daily energy production from each of the lantern’s solar panels as follows:

where: Ein is the combined daily energy production of the solar panels.

n is the number of solar panels.

Hi * Wi

VMPPi

* Eff n i=1

Ein =

H is the daily solar radiation on one of the panels in kWh/m² (see below for solar radiation values).

W is the solar panel’s rated power at -11° C (12° F).

VMPP is the solar panel’s voltage at its max power point.

Eff is an efficiency factor. Set Eff = 0.80.

Solar radiation values. The solar radiation values presented here are average radiation values for Portland, ME, for the month of December. Use these radiation values to calculate the solar panels’ daily energy production:

● For 4 vertical solar panels spaced 90-degrees apart: H1 = 2.37, H2 = 2.21, H3 = 0.53, and H4 = 0.54 kWh/m²/day. These are average radiation for vertical surfaces facing 135°, 225°, 315°, and 045° respectively (000° being a north-facing solar panel and 090° an east-facing solar panel).

● For 3 vertical solar panels spaced 120-degrees apart: H1 = 3.02, H2 = 0.61, and H3 = 0.66 kWh/m²/day. These are average radiation for vertical surfaces facing 180°, 300°, and 060° respectively (000° being a north-facing solar panel and 090° an east-facing solar panel).

● For a horizontal solar panel, use H = 1.56 kWh/m²/day.

Data Sheet 3

High-Intensity Self-Contained LED Lantern

Salient Characteristics

General: High-Intensity Self-Contained LED Lanterns submitted for consideration that meet or exceed the requirements in this Data Sheet along with all the requirements of Section 3 of this

Specification will be considered.

Features: • High-Intensity Self-Contained LED lanterns include the light source, solar panels, battery(s), and control system as an integrated package.

• Fan beam.

• Lantern available in the following colors: white, red, green, and yellow.

• Minimum of two solar power system sizes required: small and large.

Performance:

Adjustable intensity for all flash rhythms: 24 to 290 candelas minimum effective intensity adjustability range for white and yellow; and 24 to 240 candelas minimum effective intensity adjustability range for red and green.

Vertical Divergence: ± 3.5 degrees minimum to 50% peak intensity.

Small Solar Power System: The lantern with the small power system shall be capable of operating year-round in Portland, ME with a 10% duty cycle (e.g., FL4(.4) rhythm) at a setting that will provide at least 43 candelas effective intensity (all signal colors). Additionally, the battery shall have an autonomy of not less than 20 days; and, on a daily basis, the solar panels shall be capable of generating at least as much energy as will be consumed by the lantern [i.e. Ein (energy in) shall be equal to or greater than Eout (energy out)].

Large Solar Power System: The lantern with the large power system shall be capable of operating year-round in Portland, ME with a 30% duty cycle (e.g., Q Flash rhythm) at a setting that will provide at least 66 candelas effective intensity (white, red, and green signal colors).

Additionally, the battery shall have an autonomy of not less than 20 days; and, on a daily basis, the solar panels shall be capable of generating at least as much energy as will be consumed by the lantern [i.e. Ein (energy in) shall be equal to or greater than Eout (energy out)].

Storage: The lantern shall be capable of being placed in sleep mode to prevent operation while in transit or storage.

Charge Port: An optional charge port for charging the battery(s) from an external power source is available.

For autonomy and energy calculations, see pages 2 and 3 of the Data Sheet for Self-

Contained LED Lantern (Data Sheet 2).

Data Sheet 4

High-Intensity Multi-Tier 10, 5, and 2.5-Degree Externally-Powered Standalone LED Lantern (with optional Stack Mount)

Salient Characteristics

General: High-Intensity Multi-Tier Externally-Powered Standalone LED Lanterns submitted for consideration that meet or exceed the requirements in this Data Sheet along with all the requirements of Section 3 of this Specification will be considered.

Features: • Standalone high-intensity LED lanterns include the light source and control system requiring only an external 12 VDC power source to operate.

• Fan beam.

• Available in three (3) possible vertical divergences (2.5, 5, and 10 degrees).

• Available in a minimum of four (4) possible tier combinations to increase light intensity

(Single Tier, Multi-Tier A, Multi-Tier B, and Multi-Tier C).

• All tiers within a lantern are operated by a single controller internal to the lantern.

• Lantern available in the following colors: white, red, green, and yellow.

• High-base option available in the 10-degree version to increase the focal height by 2.5” to 3.0” for use on buoys.

Performance:

Vertical Divergence: The three (3) required vertical divergences are listed below. A proposed lantern may have a vertical divergence greater than that shown for each of the three lenses;

but in order to minimize the impact on the solar power systems of existing USCG lighted aid installations, the maximum allowed power consumption figures are presented below for each of the three vertical divergence single-tier lens combinations operating at the stated intensities.

2.5 Degree Lens: ± 1.25 degrees minimum to 50% peak intensity

5 Degree Lens: ± 2.5 degrees minimum to 50% peak intensity

10 Degree Lens: ± 5 degrees minimum to 50% peak intensity

Minimum effective intensity adjustability range in candelas for all flash rhythms broken down among the four required tiers (minimum) for each lens:

2.5 Degree White Red Green Yellow

1-Tier 161-1120 131-959 131-959 109-835

Multi-Tier A 496-2360 348-1790 369-2040 290-1520

Multi-Tier B 1310-5430 1120-4750 1120-4750 1080-4620

Multi-Tier C 2360-9180 2040-7280 2280-8070 2040-7280

5 Degree White Red Green Yellow

1-Tier 77-641 39-588 54-496 29-369

Multi-Tier A 161-1120 161-1120 109-835 83-695

Multi-Tier B 695-3140 641-2890 496-2360 348-1790

Multi-Tier C 1120-4750 1080-4810 835-3660 588-2720

10 Degree White Red Green Yellow

1-Tier 21-348 21-348 21-290 21-240

Multi-Tier A 66-588 63-695 77-641 54-496

Multi-Tier B 290-1520 348-1790 290-1520 161-1120

Multi-Tier C 588-2720 641-2890 417-2280 348-1790

Power consumption at +12.0 VDC input, +20 to +25 deg C, and operating at:

Fixed intensity of 205 candelas ± 5 cd for the 2.5 degree 1-Tier lantern:

White - 0.110 amps max

Yellow - 0.143 amps max

Red - 0.121 amps max

Green - 0.077 amps max

Quiescent current (all colors) - 10 ma maximum (night), 5 ma maximum (day)

Fixed intensity of 77 candelas ± 2 cd for the 5 degree 1-Tier lantern:

White - 0.066 amps max

Yellow - 0.110 amps max

Red - 0.088 amps max

Green - 0.044 amps max

Quiescent current (all colors) - 10 ma maximum (night), 5 ma maximum (day)

Fixed intensity of 77 candelas ± 2 cd for the 10 degree 1-Tier lantern:

White - 0.143 amps max

Yellow - 0.220 amps max

Red - 0.132 amps max

Green - 0.143 amps max

Quiescent current (all colors) - 10 ma maximum (night), 5 ma maximum (day)

High-Base: A high-base option in the 10-degree single-tier version is required to increase the focal height by 2.5” to 3.0” when used on USCG lighted buoys.

Stack Mount: An optional mount is required to stack two or more lanterns for additional intensity and custom characteristics.

Synchronization: Synchronization is provided by wire so that two or more lanterns can be synchronized together. The synchronization feature shall have a delayed sync option to allow an alternating color flash when used with two different color lanterns.

The lantern’s sync function shall have a feature that allows the light to switch off and remain off when the sync wire is grounded (this feature is useful when the lantern is used as a backup standby light at USCG lighthouses).

Data Sheet 5

Externally-Powered Standalone LED Range Lantern (with optional mounting kit for a passing light)

Salient Characteristics

General: Externally-Powered Standalone LED Range Lanterns submitted for consideration that meet or exceed the requirements in this Data Sheet along with all the requirements of Section 3 of this Specification will be considered.

Features: • Standalone single-module LED range lantern includes the light source and control system requiring only an external 12 VDC power source to operate. No protective housing required for installation and operation.

• Horizontal spread lenses available in several divergences.

• Multiple LED modules (up to six) can be added in an array to increase intensity.

• Day/night switching controlled by input from the photocell to either turn off the lantern during daytime hours or dim to a lower intensity at night for nighttime operation.

• Lantern available in the following colors: white, red, green, and yellow.

• Optional mounting kit for the installation of an omnidirectional LED Lantern passing light.

Performance:

Adjustable intensity: From 100% to 5% minimum effective intensity adjustability range.

Day/night dimming option controlled by the input from a photocell is a required feature.

Horizontal/Vertical Divergence: Horizontal and vertical divergence shall be ± 1.5 degrees minimum to 50% peak intensity with no external spread lens installed.

Horizontal spread lenses available: 6, 9, 12, 15, and 18 degrees ±1 degree for all lenses.

Power Consumption: The maximum allowed power consumption values of a single-module unit without a spread lens are listed below for the stated intensities.

Power consumption at +12.0 VDC input, +20 to +25 deg C, and operating at the following

Fixed intensities in the following colors:

80,000 candelas ± 2 kcd, White - 0.540 amps max

22,100 candelas ± 500 cd, Red - 0.190 amps max

37,700 candelas ± 1 kcd, Green - 0.468 amps max

16,700 candelas ± 400 cd, Yellow - 0.301 amps max

Quiescent current (all colors) - 10 ma maximum (night), 5 ma maximum (day)

Required Base Mount: ±5 degrees minimum horizontal and vertical adjustability range.

Optional gun sight or telescopic sight mounting for alignment.

Synchronization: Synchronization is provided by wire so that two or more lanterns (range or omnidirectional) can be synchronized together. Optional GPS synchronization capability (see requirements in Section 3.2.1.2).

Mounting Kit for Passing Light: An optional hardware mounting kit for installation of an omnidirectional Externally-Powered Standalone LED Lantern (as described in Data Sheet 1 of this Specification) passing light is required. The mounting kit shall facilitate the installation and use of an omnidirectional LED lantern passing light in conjunction with this LED range lantern. The two lanterns will be synchronized. This two-lantern configuration is intended to be a direct replacement for legacy 250mm lanterns w/condensing panels.

Data Sheet 6

High-Intensity Externally-Powered Standalone LED Range Lantern

Salient Characteristics

General: Externally-Powered Standalone High-Intensity LED Range Lanterns submitted for consideration that meet or exceed the requirements in this Data Sheet along with all the requirements of Section 3 of this Specification will be considered.

Features: • Standalone single-module High-Intensity LED range lantern includes the light source and control system requiring only an external 12 VDC power system for operation. No protective housing required for installation and operation.

• Multiple LED modules can be added in an array to increase intensity (optional).

• Day/night switching controlled by input from the photocell to either turn off the lantern during daytime hours or dim to a lower intensity at night for nighttime operation.

• Lantern available in the following colors: white, red, and green.

Performance:

Adjustable intensity: From 100% to 5% minimum effective intensity adjustability range.

Day/night dimming option controlled by the input from a photocell is a required feature.

Horizontal/Vertical Divergence: Horizontal and vertical divergence shall be ± 1.5 degrees minimum to 50% peak intensity with no external lenses.

Power Consumption: The maximum allowed power consumption values of a single-module unit are listed below for the stated intensities.

Power consumption at +12.0 VDC input, +20 to +25 deg C, and operating at the following

Fixed intensities in the following colors:

500,000 candelas minimum, White - 4.1 amps max

136,000 candelas minimum, Red - 1.7 amps max

276,000 candelas minimum, Green - 2.8 amps max

Quiescent current (all colors) - 50 ma maximum (night), 50 ma maximum (day).

Mount: A mounting method shall be provided to facilitate independent horizontal and vertical leveling and sighting of the lantern onto a target.

Optional gun sight or telescopic sight mounting for alignment.

Synchronization: Synchronization is provided by wire so that two or more range lanterns can be synchronized together. Optional GPS synchronization capability (see requirements in

Section 3.2.1.2).