... power supply unit 6V 12V)1.Input Voltage: 100-240V AC 50/60Hz Output Voltage: DC 12V 1A2.Short circuit ... electronic keyboard, karaoke OK reverb, air conditioners, control panels, electronic instruments, blood pressure monitors, routers, razors, juicer, motorcycle stereo, mini CD ... systems, monitors, high speed PTZ, security products, Christmas trees and so on. AC DC current transformer 5V 9V 12V