Hitop Solar powered string lights Icicle/Water drops shape perfect decoration for birthday party weddings Festive gatherings auto Sensor controls lighting/recharging (Colorful(Water drops)) Sealing technology, with good waterproof performance. No wiring needed, solar powered, auto Sensor controls recharging Get fully charged in sunshine about 4-8hours, keep glowing for about 8 to 20 hours at night The light will light up automatically at dusk and may turn off automatically when ambient light is too strong Suitable for indoor and outdoor decoration with trees, wreaths,weddings, birthday parties, and other gatherings etc.