1,PV panel: 5W 2,Light source: 4W 3,2pcs*2W LED light 4,CE & Rosh certificate 5,4-6 H/DAY, 2-3 days back up without sun Solar home lightingYG-SLK-E1 PartsTechnical parametersRemarkSolar panelsilicon wafer: monocrystal/polycrystal Life span20-25yrs power : 5Wworking voltage(Vmp),working current(Imp): 9V,560mAOpen circuit voltage (Voc),short-circuit current (Isc): 11V,620mAsize: 291mm*191mm* ...