TYN-CY (J) double aviation obstruction light mainly used in the place where requires the high reliability, such as airport, tower and high building in the air line. The light is composed of two separated system, the main light and spare light. The spare light turns on automatically if the main light failed. The aviation light could work continually for more than 40 days during the cloudy day. Technique parameter FlashingFrequency: 20-60/minute (can be adjusted) LED: 190 Light Source Applying Time: 100,000 hours Intensity: > 1600cd Storage Battery : 12V/12AH per battery×4 Solar Panel: 25W Temperature Suited: -40oC 70oC Weight: 25Kg