Innoo Tech Solar String Lights Outdoor Globe Christmas String Lights 19.7ft 30 Led White Crystal Ball Decoration for Patio ,Garden ,Wedding,Party,Bedroom Water--resistant----This solar string lights suitable for outdoor & indoor. Eco Saving----Built-in rechargeable NI-MH battery,recharge at daytime and light up automatically at night or dark environment Long working time----With a full charge of 6-8 hours, the Fairy lights will provide lighting for 8-10 hours.Manganese element are added into the Innoo Tech Solar Light Batteries to ensure that solar battery can be charged in the Winter. Easy to Operate & Install----Simple operation with Two switch and one Stake Efficient Absorption & Conversion----Adjustable solar panel design for direct sunlight in Summer and Winter