1.solar panels Specifications: 6v 2.4w 2.built-in high capacity rechargeable batteries: lithium polymer battery 2200MAh Performance indicators:1, using high-efficiency monocrystalline and polycrystalline silicon solar cells , solar energy conversion efficiency as high as 16% or more2, solar panels Specifications: 6v 2.4w(depends on customer request)3, built-in high capacity rechargeable batteries ...
