Usefulness: It's the necessity for camping，boating or emergency preparednessAs far as possible to put one in the glove-box or packpackingSuitable for night or wild illuminationSwitch type: manual third gearInflatable Size: diameter 4.92 in， height 4.13 inActual battery capacity 1000 MAHThe solar panels: 160 MAHFull lighting can be used 5 hoursSemi- lighting can be used 10 hoursWeight: about 120gPackage contents: 1 pcs solar light