Waterproof solar Christmas tree light: Each Christmas tree stake is 29 inches high with 20 led light in 4 colors (blue, red, green, warm yellow) NOTE: Please look at the number of picks before you buy, please don't refer to the number in the picture Intelligent optical control system: The product utilizes light-controlled sensing technology. When ambient light dims to the preset threshold, the Christmas tree in standby mode (with the switch already turned on) will automatically illuminate. The solar panel will automatically charge for 4-6 hours in day and will light up in night for 8-15 hours. No need to turn ON/OFF everyday. It will save you money on energy costs. Outdoor Christmas light decorations: These IP65-rated Christmas tree lights, designed specifically for outdoor use, feature a high-strength sealed construction that effortlessly withstands rain and snow. Whether adorning your porch, illuminating pathways, or decorating gardens and courtyards, they deliver reliable performance and continuous sparkle. Simple use: Just open solar battery panel switch to on for the first time use and insert it into ground and you will get beautiful night light. No electric wire, very easy to use, plug in anywhere you can decorate your yard freely as you want. The outdoor Christmas decorative solar lights work well in snowy, windy, rainy days or other bad weather. Solar Christmas decorations: High-quality ABS material simulating Christmas pine tree and leaves, bring realistic look to Christmas tree. These branches of the Xmas tree is adjustable, you can DIY it to a tree shape. Create a strong festive Christmas atmosphere.