Convert your 12 V cigarette lighter socket into three 12 V sockets and one USB outlet. The USB output allows you to charge digital devices such as mobile phones, MP3 players, PDAs and other USB equipment in your car. The splitter is protected against overload by a fuse and the LED shows whether the adapter is powered.3x 12V output for universal use1x USB-A to charger your USB deviceTotal output of 150 Watt to power different devices