We offer power inverters pro-3000w features300 amp power requirementbuilt-in battery volt/watt meterfull output power - other inverters have reduced output over time. Ground fault sensinghigh speed cooling fanhigh surgemodified sinewavemountable designoverload protectionremote operation jackshort circuit protectionsmart surge controltemperature controlled cooling fanthermal cut offthree ac outletsusb portvoltage protectionunit specificationssize: 15.200 x 8.900 x 3.540weight: 12.000power: 12v.