Our 100 amp DC power supplies offer the power you need to run that big radio amplifier or anything you can think of. These can be set to several different voltages. They run quiet and cool all day long. With a voltage readout and 5/16 DC output bolts on the back. These units have AC breakers built into the power switches to add protection to your investment. **** Please note picture may be of different model but same product case*** Please allow3-6 weeks from order date to ship date