... *Output voltage:DC3-9V,12-20V Solar charger S-N204Desp:Reflective safety Vest with solar power system (suitable for policeman, cleaner,explorer, field sporter ... (32.5WH) *Can be the power supply for a building of 3 floors! The specification for lighting:* length of cable: 10 ... box,10PCS/CTN/62*52*43cm/G.W.:16KGS Solar power system (GF-S-N204) (portable solar power system/portable solar system)