Solar/ Dynamo Desk Light Model No.: 273 Solar + crank hand led desk light. With 6pcs super LED lamps . Built-in rechargeable ( 1.2V 600mA ) .With USB plug, charged 3hrs by USB on the computer can light 4-5hrs.Crank hand 1min can light 15mins. Charged 10hrs under sunshine, can light around 4hrs or 2hrs, fully charged can light around 5hrs.Unit size: 17x6x7cm Packing: 45x38x40cm 60pcs/ ctn g.w: 15kg/ ctn www( dot) crtop100 ( dot) com