This Low-intensity Double light is a steady burning aviation obstruction light designed for marking top of obstacle that do not exceed 45 meters in height.Main-standby mode ensure the obstacle is always marked even one light fail.
 

Compliance
** ICAO Annex 14 Volume 1, Sixth edition, 2013, table 6.3 Low Intensity Type A / B Obstruction Light
** FAA L-810
Electrical
* LED as light source saving power consumption and maintenance,95% less power than equivalent incandescent light
* Power supply available in DC(12-48VDC) or AC(110-240VAC)
Physical
 Bird deterrent spike on top
 UV & vibrations protected polycarbonate lens for converging light
 Powder coated bright yellow color base make better visibility and UV protection
 Base material is die casting aluminum which has strong corrosion resistance, Shock and Vibrations protection
 3/4 or 1 inch thread hole make pole installation easy
System design
 Built-in photocell for day/night operation(dusk to dawn operation)
 Steady/Flashing(20flashes per minute) DIP switch on PCB
 Surge and lightning protection
 Main-standby mode, when the main light fail, the standby light automatically switch on to ensure the obstacle is always clearly marked.
 DIP switches on PCB let the user to select the light working mode
Optional
 Alarm contact for remote monitoring
 Infrared LED for pilot using NVG
 GSM cellphone monitoring
 RS485 communication part for monitoring
Application
   AH-LI/D low-intensity light could be used alone on the top of the High-rise Building, High Chimney, marking towers (Telecom, GSM, Microwave & TV), High Pole, Tower Crane, Wind Turbine, etc when the height is lower than 45m.
   When obstacle object is higher than 45m, AH-LI/D can be used with Medium-intensity or high-intensity obstruction light to indicate hazardous obstructions with a steady red safety light.

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