SOLAR LIGHT BALLS: Equipped with an adjustable and rechargeable solar panel, the Christmas solar string lights for the garden can work continuously for 8 hours at night when the solar panel absorbs enough solar energy during the day. Energy-saving and environmentally friendly. AUTOMATIC: Efficient and intelligent automatic mechanism. No need for manual control, convenient for outdoor lighting decoration. There are light-sensitive elements on the solar panel, which can make the solar string lights work automatically in the dark and charge automatically at dawn. BEAUTIFUL WATERDROP DESIGN: The outdoor solar string lights can provide a constant warm white light or blink beautifully. It's like a meteor shower at night! What a lovely indoor and outdoor lighting decor to create an elegant atmosphere! WATERPROOF AND USES: The IP44 waterproof level allows the outdoor solar lights to work normally in rain or other weather conditions. The solar string lights with raindrops are a perfect decoration for any place such as terraces, gardens, cafes, outdoor restaurants, courtyards, trees, balconies, etc.