Principle: Absorb solar energy and store solar energy into the battery, use the energy in the battery to lit the LED. Structure: External component: Aluminum outside with solar panel and switch. Power Components: solar panel, Ni-MH batter and Control circuit Circuit Components: Charging circuit, Ni-MH batter 1Ah/1.2V,switch Lighting Components: 5 pc LED Product Features: Solar energy Storage Lighting Compass Use: Put the flashlight under the sunshine and be charged Put on the switch to lit up light Specification: Size:123X24MM Weight:60g. Carton:400*300*190mm Net weight: 14KG Gross weight;15KG 180 pcs /Carton Material:Aluminum Alloy LED :20,000MCD. Charging time Solar panel:2V,100MA 10 hours under the sunshine and can work continuously 3-5 hours