This LED Christmas tree light contains 16 strings of lights (each string is 6.6 feet long, with a total of 25 leds, totaling 400 leds), and is equipped with a 16.4-foot long wire. It has an installation collar on the top, which can be easily fixed on the top of the Christmas tree for hanging installation, making it convenient and flexible to place. It supports 8 lighting modes (combination, wave, sequential, etc.) and 4 levels of lighting brightness. The switch and mode can be adjusted through either a remote control (operated by aligning with the adapter) or a controller switch. It comes with a built-in memory function, allowing you to retain the previous Settings without the need for repeated adjustments. It also features a 6/8-hour timer mode to prevent power consumption due to forgetting to turn off the lights. The string lights are designed to be waterproof, capable of withstanding light rain, water sprinkling and snowy weather. They are suitable for decorating indoor and outdoor Christmas trees and can also create an atmosphere for festival gatherings, weddings, courtyards and other scenarios.