... *23 mm,NG:281G,GW:703GTechnical Parameter1.Solar panel:5.5 V,3W 2.Solar conversion efficiency above 17%3.Built-in ... for mobile phone ,digital camera ,PDA,Mp3,Mp4, IPOD,DV etc digital products.9,Charging time(with proper AC adapter):3 ... :15.5KG Color optional black, red, yellow,blue,green LEMI portable 5200mah monocrystalline silicon solar mobile phone charger