Note: This package includes only the LED lighting set. LEGO A Frame Cabin 21338 model is not included. - Compatible with LEGO A Frame Cabin 21338: This lighting set is designed to work with the A Frame Cabin model. The kit provides concentrated lighting and creative color options to enhance your display without modifying the model itself. - Easy installation with hidden cables: The lighting line is integrated for a clean look. Cables are neatly hidden so there is almost no exposed wiring after installation. We also provide pictures or video instructions to guide you. - Multiple power options: The LED lighting bricks kit can be powered by USB or by battery. You can connect to a power bank, wall socket, or computer via USB. Please note the recommended supply voltage is less than 5V. Batteries are not included. - Safe and durable materials: The kit uses high quality copper wiring and ABS plastic. It is designed to resist heat and burning, helping to prolong service life. The surface is smooth and not easy to damage. - Practical use scenarios: - Night display and photography: Illuminate the A Frame Cabin for vivid night-time photos or a striking shelf display. - LEGO diorama or collection showcases: Add ambient lighting to highlight the cabin as the focal point of a diorama or on a collector shelf. - Portable display or events: Use USB power from a power bank for temporary displays or events where a reliable light source is needed without access to mains power.