Color: BlackFeatures: Solar Powered & Auto On/Off: FMART outdoor string lights are powdered by solar energy. It turns off and auto-charges itself during day, and auto turn on during night. No outdoor outlet or batteries needed by these black led string lights outdoor, also the string lights are can be hang anywhere as you like OTE: CANNOT CONNECTABLE /li>Safety Durablecable: The weatherproof hanging lights is suitable for outdoor and indoor use. IP44 heavy duty cable can withstand extreme temperatures(-20 to 50 degrees). The bulb is made of anti-fall plastic, don’t worry about breakage or damage when it falls from height (NOTE: 24ft solar light string cannot be charged by USB, but 49ft solar light string can be charged by USB)Energy Efficient & Save Money: The LED bulbs are very efficient and save more than 90% energy than incandescent light bulbs. In case of damage, the patented construction and hi-tech filament make it easy to replace or repair. There is no need to worry since the