This Low-intensity light is a steady burning aviation obstruction light designed for marking top of obstacle that do not exceed 45 meters in height.

Compliance  ICAO Annex 14 Volume 1, Seventh edition, 2016, table 6.3 Low Intensity Type A / B / E Obstacle Light  FAA L-810 Features 

Electrical  3 high power CREE LED, make sure LED keep bright while use  Power supply in DC(48V)& AC(110-240VAC), the light could work normally when input 48VDC/110VAC/240VAC  LED power supply board includes short circuit and open circuit protection, Line surge protection by metal oxide varistor 

Physical  Bird deterrent spike on top  Unique designed PMMA lens for converging light and good transparency  High translucency and anti-UV polycarbonate cover could use 3-5years without yellowing  UV protection Powder coated bright yellow color base make better visibility and also long life in harsh environments  Base material is die casting aluminum which has strong corrosion resistance, Shock and Vibrations protection  3/4inch thread hole make pole installation easy  No screw fix type - just twist, the cover will be fixed tightly 

System design  Built-in photocell for day/night operation(dusk to dawn operation, automatically turn on when background luminance is below 50cd/m2  Steady(factory setting)/20FPM/30FPM/60FPM DIP switches on PCB  Surge and lightning protection