Fully Reuglated Power Supply.30 Amps Continious output 13.8V DC.Great for Amateur Radios Two-Way and other 12V DC items that draw up to 30 Amps.Lighted on/off Switch.Overheating Protection.Cooling and Fan Control.Red/Black Terminal Post.Outputs: 13.8V DC At Up To 30 Amps Continuous.Dimension: 2.63" H x 8.5" W x 8.25" D.