... highway construct , erection of house,parking lot,toll-gate... solar panel: high efficient monocrystalline silico Quick Details Product name: ... Flash 110times/minVisible distance more than 1200mPower Monocrystalline silicon solar panels Ni-MH 2.4V2300mAhWorking time Can work last ... for 8days without sunshine Features1,on-off button2,solar and 4R25 dry cell are available3,microprism design can ...