GP-400HD: 400 WATT MODIFIED SINE WA

Inverts 12 Volt DC To 110 Volt AC; Modified Sine Wave Inverter; 300 Watts Output/ 400 Watts Surge; 80 To 90 Percent Efficiency; Two Outlets To Plug Into Lighter Socket And Clips; Over Load/ Over Thermal Protection/ Cooling Fan; 3-1/2 Inch Width x 2 Inch Height x 6-1/2 Inch Length