About this item 12V DC Power Supply Adapter: Input: 100V-240V 50/60HZ; Output: DC 12V 3A (Max 36W) DC Adapter Wire Length: 90CM, Adapter Size: 3.54 x 1.97 x 1.18 inches, Blue working indicator light Output adaptor jack size: 5.5mm x 2.5-2.1mm, easy to use on DC 12V LED appliances (0.5A 1A 1.5A 2A 3A all are suitable) Adapter Function: transfers home AC 100V -240V to DC 12V and protects DC devices from short circuit, overload, or overheat, Safety and Stable Widely Application: supplies power for 12V LED strips, LED Modules, CCTV Security Cameras, LCD Monitors, HUB switches, ADSL CATS, wireless router, DVR and other various applications (No more than 36W). Dimensions: 3.54 x 1.97 x 1.18 inches.