... S-N204Desp:Reflective safety Vest with solar power system (suitable for policeman, cleaner,explorer, field sporter ... cable: 10 meter * Voltage: 12V, 3W* 3 LED's bulb, super bright, long connection wire(optional) Importance ... the laptop can work 2 hours, lighting system can work 8-16 hours after charging.In ... /G.W.:16KGS Solar power system (GF-S-N204) (portable solar power system/portable solar system)