Oxford OF949 Solariser Solar Powered 12V Automotive Battery Charger Perfect for where there is no mains power source Ideal for vehicles left outside or in remote lock-ups where the solarize can be left outside or attached to a window or garage roof. Led light shows battery will charge with available light Simply attach the solarize by a) plugging into the cigarette lighter socket or b) with the permanent battery connection leads or c) with the crocodile clips supplied Operates in extreme temperatures -4 degree (-20 degree) to 212 degree (100 degree)