For Arduino,  mini-TV, 2.5-inch mobile hard disk, mobile DVD, TV box, wireless audio and video equipment, charging equipment, MP3 / MP4, small table lamp, router, switch, game console, telephone, lantern, camera, monitoring equipment, control And other household / portable equipment.

INPUT: 100-240V AC 50/60Hz
OUTPUT: 12VDC 1A
OUTPUT Connector Size : 5.5*2.5mm (Round Head)*suitable for 5.5*2.1mm size also.