Input: 100V-240V
50/60Hz; output: 12V DC 3A max; Works with device that draws less than 3A such as 500mA 1A 1.5A 2A 2.1A 2.3A 2.6A 3A. DC plug connector external diameter is 5.5 mm internal diameter is 2.1 ~ 2.5 mm. Comes with a female DC barrel connector. You can easily screw wires on it without soldering.
Safety protection: automatically overload cut-off over voltage cut-off over temperature cut-off short-circuit cut-off. Sufficient 36W output power and stable 12V output voltage will protect your electronic devices from destruction. It is perfect for 12V devices less than 24W such as LED light strip CCTV camera security system Bluetooth speaker keyboard TV boxes webcam router etc.