... Screen 3,To All SmartPhone & Ipad monocrystal silicon solar mobile phone charger 5v rohs monocrystaline silicon solar power battery ... constant voltage.4,Auto protection function:overcharge,over discharge,overload,reverse connection,short-cercuit will be protected ; lighting protection ... digital products.7,LED indication for batteries .8,Suitable for mobile phone ,digital camera ,PDA,Mp3,Mp4, IPOD,DV ...