... alloy. Solar Panel: Mono-crystalline silicon,40MAH output current, 5V output voltage.Internal rechargeable battery:Two 1.2V,600MAH Environment ... towards the sun, effective sunshine eight hours, continuous lighting 5-8 hours. Specification: 165 mm length, Head Diameter:34 mm, ... MA; Short-Circuit Current(A):42 MA; Open-Circuit Voltage:8.5V; Dimension of solar panels:107*23 mm Dimension of Package ...