Input: 100V-240V 50/60Hz; output: 24V DC, 2A max; Works with device that draws less than 2A, such as 500mA, 1A, 1.2A, 1.4A, 1.5A, 1.6A, 1.8A, 2A. DC plug connector external diameter is 5.5mm, internal diameter is 2.1~2.5mm. 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 48W output power and stable 24V output voltage will protect your electronic devices from destruction. It is perfect for 24V devices less than 48W, such as 5050 2835 24V LED light strip, CCTV camera, security surveillance system, Bluetooth speaker, DC motor water pump.