About this item 2 Ways Powered: Powered by Solar and USB, no worry about the weather affect the lighting of beautiful lights, powered by USB in rainy days, while solar in sunny days, always own a bright string lights Easy to Install: String Lights are folded up in a package, just straighten and hang it up The cable is flexible and made of copper wires which makes it more conductive Length of String Lights 5 M, total 20 bulbs led Widely Decoration: Waterproof, suitable for indoor & outdoor decorations and widely used for garden, fence, party, wedding, bedroom, Christmas tree and so on.