1- used in cars for exchange 220V electric voltage, 2-DVD, video games, camera, digital camera etc. On-board power inverterCQ-200Input voltage : DC11.5-15.5V Output voltage : AC200~220 50-60Hz USB output : DC 5V-500mA Use power continued: 200W The maximum power: 250W Peak power : 300W Product size: Long * width * high 122*70*20 MM 220v mini car power inverter