20 Led Outdoor Solar String Lights Fairy Lights Warm White Chuzzle Ball for Patio Garden By Uping 1. Long Working Time: Work 8-10 hours after 6-8 hours fully charge in daylight. 2. Waterproof IP44: Solar string lights suitable for Outdoor Deko. 3.Easy to Operate and Install: Simple operation with Two push buttons and one Stake. 4.Energy Saving: Built-in rechargeable NI-MH battery,recharge and light up automatically, if the sorrounding is dark. 5.Efficient Absorption and Conversion: Adjustable solar panel design for direct sunlight from Summer to Winter.