PowerLED-based High Intensity Type A Aviation Obstruction Light conforms to the International Civil Aviation Organisation(ICAO) and US Federal Aviation Administration (FAA) Type L-856 requirements for luminous intensity of 200,000 candela 25% inflashing white mode of 20-60 flashes per minute.This product replaces the existing conventional xenon flash tube-based light. Such xenon flash tubes suffer from the disadvantage of avery rapid light depreciation rate, of within 2 to 3 years of operation, and manufacturers of xenon-based lights recommend the replacementof the flash tube every two years to avoid the possibility of the light intensity depreciating below the minimum ICAO requirementafter that period thus entailing expensive and hazardous maintenance activities at the extreme heights (150m and higher) at whichthese lights are installed. The danger and risk involved in this maintenance procedure is amplified as these xenon tubes operate atvoltages greater than 1KV; thus requiring extreme care by maintenance personnel during replacement at heights.A long life of 100,000 hours (to L50), thus enabling a life of 10 years minimum· Complete elimination of all maintenance (which is expensive and hazardous) throughout the life· Low voltage operation of LEDs, making the product intrinsically safe· Low power consumption· High reliability solid-state operation· Ability to withstand a wide variation in input voltage from 100V-260V· Environmentallyfriendly LED operation (unlike xenon tubes, which are to be recycled in an environmentally responsible manner) For greater reliability, the power LEDs are arranged in independent stacks of LED reflector modules, and provide 120-degree lightemission. These special power LEDs provide superior light output, and can operate at higher currents and temperatures, thus providingenhanced light intensity without compromising life.Automatic witching of light levels (Day/Twilight/Night modes) is provided by means of control cabling from the Switching Controller atthe ground level which adjusts the light output as follows:a) 200,000 candela (at background light level of above 500cd/m2, i.e., daylight)b) 20,000 candela (at background light level of 50-500cd/m2, i.e., twilight)c) 2,000 candela (at background light level of below 50cd/m2, i.e., night-time)The body and base are made with LM-6 aluminium-silicon alloy (which has been preferred by chemical industries, particularly for resistanceto corrosion). The top cover acts as a heat sink to enhance LED life and reliability. The entire unit is sealed to IP65 with neoprenegaskets.A central rod runs from the top to the bottom of the unit, and has a pointed end which acts as a bird spike. Screw-less terminals areprovided in a terminal box for connection to the external power supply input.Warranty: The above product is covered under warranty of three years, subject to standard terms and conditions.