A light string without electricity bills, solar powered, environmentally friendly, energy-saving, and waterproof design. High efficiency and energy saving, no heat problem, no flickering ultra-fine thin copper wire reduces energy costs. The LED string lights create a warm, joyous and festive atmosphere, making your Christmas, holidays, weddings, and parties joyful. Decorative lights are suitable for bedrooms, gardens, terraces and parties, as well as the decoration of cafes, restaurants, hotels, clubs, casinos and houses as a whole. If you have any questions about the product, please contact us. The product has two types of warm color light and color light, and the length is 7m, 12m, 22m, 32m, 52m to choose from. note: 1. Solar panels need to be installed in the open air or in a place exposed to sunlight. 2. Remember not to cover the solar panel with objects when charging the light string during the day.