Firefly Trendy Hip Unique Waterproof Solar Crystal Glass LED Ice Light, Color-changing Night Lamp /Pond /Garden/house Lights for Party Fancy Ideal Novel Creative Gift for Christmas Automatically changes colour, Weatherproof . Solar powered - recharges during day. Automatically comes alive at night Lasts over 8 hours on a full charge - use it all night long! Size: Diameter: 7x7x5 cm