No need for additional wire assembly, eco-friendly and without electric cost, no need to replace the battery, no tools required, can easy to decorate your indoor and outdoor. Very simple operation with only two optional switches (Power ON/OFF and Light Mode). Expose the solar panel to direct sunshine and make sure the solar panel faces directly to the sun.The low voltage does not generate excessive heat and consumes less power.waterproof function, the solar string lights and battery panels can withstand various weather conditions, including heavy rain and snow, and can resist rain in rainy days. You don't need to worry about damage due to weather and cause short circuit.multi colour and bright white,light up for up to 12hr after charging for 6- 8hr in sunlight50 high quality led light 1.5cm diameter eachauto senor turns the lights on at nigh and off during day long lasting,weatherproof.