Perfect for Home, Shop and Hobbyist Built-in Cooling Fan Current Meter Input: 115V AC, 60Hz, 450 Watts Output: 13.8V DC 18 AMP Constant/ 20 AMP Surge Powers Cellular Phones,12V DC CB Radios, Scanners, HAM Radios, Autosound Systems, etc. Screw-On Terminal Binding Post Connectors Linear Type Power Supply Electronic Overload Protection w/Auto Reset Short Circuit & Thermal Protection Indicator Crowbar Over-Voltage Protection Fuse Protected LED Condition Indicators 3 Prong Grounded AC Plug Heavy Duty Cabinet & Heatsink with Anti-Skid Rubber Feet Dimensions: 11.38''(L) x 9.45''(W) x 4.65''(H)