... variety of electric devices with power consumption less than 150W,such as mobilephone,MP3,laptop,lamp,digital camera,CD,TV,Fan,etc ... heat dessipation and low maintenance ratio.6.Unique SMT processes with higher stability.Instruction on operating:1.Insert cigarette lighter plug ... th inverter from cigarette lighter socket of the automobile. Car Auto Power Inverter Adapter DC-AC 100W with USB (Blue)