Voltage Booster with Surge Protection 50 Amp. Use To Boost A Park Voltage Measuring Less Than 113 Volt To 115 Volts. 50 Amps, 1200 Watts With Lighted Boost Indicator. 4-1/2 Foot Cord Length; 8-1/2 Inch Width x 12 Inch Height 5-1/2 Inch Depth With 4800 Joules Surge Protector and Security Cable.