This is a Solar power battery pack, we call ourselves M&R portable solar power solutions. We are Australian and based in Adelaide South Australia. This ideal for off grid, power outages, camping, caravans, hunting, and marine. This unit will cost you about the same as a good quality petrol gen set, but running costs are zero, as it is powered from the sun, noise free, green energy. It can be fitted to a car, but you will need a DC to DC charger, and a VSR, it can be easily fitted to a caravan as a plug and play setup, or a camper trailer, boat etc.