KINGCOO Solar Crystal Ball String Lights, Waterproof 20ft 30 LED Crystal Globe Fairy Lights with 2 Modes Crystal Ball Globe Lights for Garden, Yard,Christmas Decorations (Multi Color) Waterproof -- The lights are suitable for Indoor and Outdoor decorations, can withstand all kinds of weather including heavy rain and snow. Energy Saving & Eco Friendly-- Built-in rechargeable NI-MH battery is powered by solar energy, the christmas indoor fairy lights automatically charge under sunshine and light up at dusk . No pollution to environment Lasting--Plastic bulb design which not easily broken like grass bulbs ( 2 mode working ligtings: Steady on, Flash) LONG-LASTING - 600mAh rechargeable battery can work continuously for 8 hours once fully charged. Just replace the RECHARGEABLE BATTERY when there is not enough sunshine, then it will work. Wide Use Occasions--The outdoor led lights can be put or hung on walls, windows, doors, floors, ceilings, grasses, Christmas trees which add warm and charming atmosphere to your garden, patio, lawn, porch, gate, fence, yard, EAster Day, etc