Perfect for home, shop & hobbyist. Powers cellular phones, 12V DC CB radios, scanners, ham radios, auto sound systems, etc.. 115V AC, 60Hz, 450W input. 13.8V DC output. 18A constant/20A surge. Built-in cooling fan. Screw terminal connectors. Fuse protected. LED condition indicators. Heavy-duty cabinet, heat sink with anti-skid rubber feet. Dim: 4.92"H x 11.81"W x 9.05"D. This 20-Amp Power Supply by Pyramid is perfect for your home or shop and for hobbyists. It features an input of 115V AC, 60 Hz and 450W and an output of 13.8V DC. It powers phones, CB radios, scanners and more.