Pre-heat Circuit Installed Low temperature and low voltage start Polarity Protection Rated Voltage: 12V (10.5V-15V) or 24V (18V-28V) Rated Wattage: 3W, 5W, 7W, 9W, 11W and 13W (+5%/-10%) IC circuit board for 3W, 5W, 7W, 9W, 11W and 13W Colour Temperature: 2700K, 4200K, 6400K, Red, Green, Blue Wave Profile: SINE Operation Temperature: -10℃~50℃ Lamp Base: E26, E27, B22, E14, etc Life Time: 6000 hours Product Application Solar power, wind power DC lighting Miner''''s lamp(safety lamp), telephone booth lamp Boat lighting, car, bus, mobile machinery shop, dock illumination Village, mountain, island, camping, resort direct current lighting Rechargeable battery illumination DC generator illumination Home illumination, solar street lighting Emergency illumination