Solar powered and safe solar string lights with high efficiency. Weatherproof, ideal for indoor and outdoor decorations. Four different lighting modes: Steady mode and flashing mode. They can be easily changed by pressing the mode button. Built-in rechargeable NI-MH battery, can be charged during the day and automatically illuminates at night or in dark environments. Operating time: Charge 4-6 hours a day, works 6-8 hours at night. Create a vibrant, colourful and romantic atmosphere, ideal for decorating your patio, garden, party, wedding, trees or pergola, the novelty of these festive LED strings will enchant your neighbours and friends.