... :DC3-9V,12-20V Solar charger S-N204Desp:Reflective safety Vest with solar power system (suitable for policeman, ... mp4/ radio/digital camera/music player/phone)Spec:*Solar Panel:18V,250MA,5W *Input voltage:DC18V, ... the laptop can work 2 hours, lighting system can work 8-16 hours after charging.In ... *52*43cm/G.W.:16KGS Solar power system (GF-S-N204) (portable solar power system/portable solar system)