... convenience for people on the power off situation.Can be used in many occasion, such as in cars,in trucks,at ... drive many equipments ,for example :75W :cell phone,camera, Video game, camcorder charger ,etc.150W:laptop, PDAS , 8" TV, Halogen light ... information? 400W dc to ac inverter 12/24V to 220V used in car and house.ect