Deckey LED String Light Pure White 100 LED Outdoor Solar Powered 39.4FT Starry Fairy Lighting Flashing Lights for Xmas Tree&nbsp;Patio Gardens House Yard Decoration Ultra Eco-friendly: Built-in rechargeable 1.2V 600mAh NI-MH battery is powered by solar energy, no pollution to environment, just bright enough to not annoy your eyes. 100 LED lights in steady and flashmodes , form a beautiful and fairy world. Easy to install. No wiring required. Super long working time, it can continuously work more than 8 hours at night if the panel absorbs enough sunshine during day. Beautifully designed and widely used: widely used in road, yard, window, shops, hall, stage, especially as Christmas tree decoration creating a warm and romantic atmosphere.