ITEM NAME:18V 2.5W Polycrystalline Stored Energy Power Solar Panel Module System Sola T8B8 18V 2.5W Polycrystalline Stored Energy Power Solar Panel Module System Sola T8B8 18V 2.5W Solar Panel High conversion rate, high efficiency output Excellent weak light effect It is important electric parts for transferring the sun light power into electrical power for your application Suitable for charging cellphone and small DC batteries Build your DIY.Material: polycrystalline silicon. 18V 2.5W Solar Panel High conversion rate, high efficiency output. Build your DIY powered models, solar display, solar light and solar toys, etc. 1 x Solar Panel. colour: black.