NoteOnly LED light set, 40573 model sets are not included in the package. Our lighting set is compatible with LEGO Christmas Tree set and offers more concentrated illumination with more creative light colors. Easier to install, better hiding - Integrated light line design for a clean look - Specifically compatible with LEGO Christmas Tree 2022 set - Cables are neatly hidden with almost no exposed wiring after installation - Reduces installation difficulty - Includes clear pictures or video instructions to help you install quickly and correctly Flexible power options - Power the light kit by USB cable or battery - Connect to a power bank, wall socket, or computer via USB - Recommended operating voltage under 5V - Note: the battery is not included in the package Safe and durable materials - Made from high quality copper lines and ABS plastic - Anti-heat and anti-burning properties for safer use - Smooth surface, durable and not easy to break 2-3 practical use scenarios - Use with the LEGO Christmas Tree 2022 set to create a bright, focused display for holidays or year-round decor - Place on a desk, shelf, or display cabinet and power via USB from a computer, power bank, or USB wall adapter for portable lighting - Gift or showcase for LEGO enthusiasts, offering a tidy, hidden wiring solution with safe, durable materials and flexible lighting options