Features: 1) 4.4W (2 x 2.2W) multi-crystalline silicon solar pannels 2) 10pcs 1.2V / 1,600mAh Ni-Mh rechargeable batteries 3) Out put: DC 12V / DC 6V 4) 8 - 10hrs under sunlight for fully charging the built-in batteries 5) Temperature range: -40 - 80°C 6) 5 cell phone adapter plugs included 7) Multi-purpose adapter plug for small digital electronics included 8) Car charger for fixed wireless phones (output: DC 12V), optional