... protection 3.small enough to carry around Specification of switch power supply: Input Voltage100~240VOutput Voltage3~12VOutput Current0.5A~1.5AFrequency 50 ... application: switch power supply for cctv camera, mobile phone charger, phone charger,cell phone charger, travel charger,MP3/MP4 player charger, digital cameral, TV power supply, LCD power supply, video ...