20 LEDs 16.4 Ft Solar Powered Multi-color Dragonfly Fairy Strings Lights , Decorative Lights for Indoor Outdoor Christmas Xmas Parties Wedding Festival Holiday Room Garden Yard Porch This is a wonderful battery operated solar string light with high brightness Recharged by solar panels under sun light; Automatic sensor activates at dusk; Lights up to Ten hours if fully charged High brightness, no conventional energy consumption, long service life; Easy installation, stable and reliable, without laying cables, waterproof This string light is great for decorating your Christmas tree, partie, wedding, wardrobe, table, garden, fence, patio, ect There are 2 switches, one is Mode (Flashing mode convert switch), another is Power On/Off (After switch turned on, can automatically light control and charging)