This is a versatile 110VAC-to-12VDC power supply. Solid state components. Ultra reliable switching power supply with 14 Amps output power, the output voltage is adjustable from 9V to 13.5V, it also comes with a 12V charger terminal for easy connection. Very small size and light weight, heatsink around the unit keep unit running cool, internal over current protection for around the clock operation. 14A continuous and 18A peak surge current, Size 7.5 x 3.7 x 2.6 inch.