Input: AC 100 - 240V, 50 / 60Hz; Output: DC 12V, Max 6A, 72W; It can supply with all amperage less than 6A. -such as 500mA, 1A, 2.5A, 3A, 5A, 6A. If your device draws 4A then 4A will be supplied. But if draws more than 6A, only 6A will be supplied and power supply will be damaged soon. NEVER OVERLOAD Output DC adaptor jack size is 5.5mm x 2.5mm. In order to meet more needs, we give away a female DC connector. You can screw wires onto it easily, no soldering required. Certified by FCC CE ROHS. We focus on producing high quality power adapters. No noise, low temperature operation, no spontaneous combustion, no explosion, no fire hazard, stable output. Automatic overload cut-off, over voltage cut-off, automatic thermal cut-off, short circuit protection. It is perfect for 5050 3528 12V LED Strip Light, Wireless Router, ADSL Cats, HUB, Security Cameras, Audio/ Video Power Supply, 3D Printer, LED Driver, CCTV Security System, LCD Monitor, Webcam Router and other 12V devices. If yo