The Altex Preferred MFG 12V 1.7W Waterproof Solar Panel Battery Charger with Mounting Bracket is designed to provide efficient and fast charging. Featuring a 95% light transmittance polycarbonate material and monocrystalline silicon panel, it can generate up to 1.7W of power for your battery. The anti-corrosion aluminum mounting bracket and stainless steel protective flex-conduit make it wind- and rainproof, while the alligator clip connection ensures a safe connection.