3 super bright LEDs Simple onoff push button Solar panel converts sunlight into electricity to charge the built-in rechargeable battery The battery is charged during the day to provide light when required at night Battery can be charged from a window sill dash board or an outdoor location that receives adequate sunlight Compact and portable design fits into any wallet purse or pocket Hard wearing rubber exterior protects the solar panel from impact Dimensions 60mm l x 35mm w x 10mm h Weight 24g 4.5V Solar Panel LED output 10000 13000mcd