... , 750MA *Output voltage:DC3-9V,12-20V Solar charger S-N204Desp:Reflective safety Vest with solar power system (suitable for policeman, cleaner,explorer, field sporter ... the laptop and the laptop can work 2 hours, lighting system can work 8-16 hours after charging.In sunny day ... /white box,10PCS/CTN/62*52*43cm/G.W.:16KGS Solar power system (GF-S-N204) (portable solar power system/portable solar system)