cheaper, portable,2 LED use,lighting up 15 hours, cellphone charging, small solar power system Solar Energy Kit Operating InstructionOverviewSolar energy kit is ... cut down the connection between control box and solar panel.3) Lighting up LED bulb: connect light bulb USB cable ... G600,D800), MOTO mini usb,LG KG90,Sony Ericsson K750,Iphone, USB. 5) Operating manual5 Parameters Solar panel,size,cable3W 22 ...