ITEM NAME:Battery Charger 5V 0.5W DIY Smart Solar Panel Module System For Cell Phone B3I4 Description: 100% Brand New and High quality. Material: Polycrystalline silicon Color:Black Dimension:Approx. 51.5*48mm Voltage: 2.5V 2.5V 110MA Solar Panel High conversion rate, high efficiency output Excellent weak light effect Suitable for charging cellphone and small DC batteries Build your DIY.Build your DIY powered models, solar displa, solar light and solar toys, etc. 2.5V 110MA Solar Panel. 1 x Solar Panel. Suitable for charging cellphone and small DC batteries. Excellent weak light effect.