1,Solar cell of single crystal silicon 2,Lighting color various 3,Continuously working about 120 hours with full power Main technical indexes and specifications:1,Solar cell of single crystal silicon with utmost power 660mw2,Golden capacitance cell can continuously working more than 14 hours with full power3,NI-MH1.2 V/2200mah ,continuously working more than 100 hours with full power4,Lighting ...