Features 1、[Good Effect] Using OTL circuit and automatic temperature control leakage protection switch output. This machine is to connect battery or generator. For catching fires of car, good effect. 2、[Safe Drive] Adopt imported tungsten wire plate heating board and high speed fan, higher temperature, greater wind power, greatly increasing the car temperature and driver safety. 3、[High Heat] The outlet temperature is about 90℃, with a small silent fan, no noise, and power saving, allows continuous use of 8 hours. Through the rotation of the fan, forced air circulation, conducive to air heating. 4、[Fast Heating] Aluminum alloy ceramic heater can quickly be heating, an essential accessory for self driving trips, camping, glass defrosting, and defrosting. 5、[High Quality] PTC ceramic heating unit, high efficiency, automatic constant temperature isopiestic pressure, long service life, no flame, and burning, ensure safety. Specifications: Item Type: Car Electric Defrost Heater Material: Metal Size: Approx. 18x12x10cm / 7.1x4.7x3.9in Power: 800W Switch: Manual Package List 1 x Defrost Heater 2 x Battery Clip 2 x Hose Clamp 2 x Tube 1 x Line