The battery adapter includes wire terminals, a 30A fuse, screws, and other accessories to facilitate DIY installation for indoor and outdoor use. Batteries are not included. This adapter is suitable for upgrading electric ride-on cars, remote control trucks, robots, work lights, and similar devices. Input voltage range: 17V65V Output voltage: 12V Output current: 10A Power rating: 120W Wiring instructions: - Input side: - Red wire: Connect to the positive terminal of the power source - Black wire: Connect to the negative terminal of the power source - Output side: - Yellow wire: Connect to the positive terminal of the load - Black wire: Connect to the negative terminal of the load Precautions: - This buck converter does not have reverse polarity protection. Always verify correct polarity before connection to prevent damage. - Ensure the input power source provides sufficient voltage and current for the intended load. - The connected load must operate at 12V and must not exceed the maximum output power of 120W. Accessory styles and colors may vary slightly by production batch, but functionality remains unchanged. Color: Yellow & Silver Material: ABS Package Contents: 1 set x Lithium battery adapter step-down module Note: The actual product color may vary slightly due to lighting conditions and display settings. Measurement tolerances are within 13 cm.