The DGK7EINV provides serious full time power and offers 6-15 hours operation at variable speed without refueling. This unit has an electric starter for hassle-free start-ups and is capable of running most homes in an emergency situation (including taking on heavy load items such as fridges and air conditioners). This inverter is also pure sine wave which means it can safely power even the most sensitive electronic equipment such as laptops and mobile phones.