Using electrical or electronic devices off-grid in a camper, or any recreational vehicle requires a power supply such as a battery, but then you'll also need to convert the DC input supply to an AC output for your device. This handy 1000w Modified Sinewave Inverter is a flexible inverter which will keep everything running smoothly. This simple microprocessor device will enable you to power your basic devices such as a phone charger, digital clock, light bulb or heater. It comes complete with both cigarette lighter plug and battery cord connections. We currently stock these in 200w, 300w, 600w & 1000w.