The battery adapter comes with wire terminals, 30A fuse, screws, and other accessories to make your DIY projects easier. Suitable for indoor and outdoor use. (Note: Batteries are not included.) Safely upgrade electric ride-on cars, remote control trucks, robots, work lights, and more. Input voltage: 17V-65V Output voltage: 12V Output current: 10A Power: 120W Wiring instructions: Input side: Red wire – Connect to the positive terminal of the power source (red wire) Black wire – Connect to the negative terminal of the power source (black wire) Output side: Yellow wire – Connect to the positive terminal of the load Black wire – Connect to the negative terminal of the load Precautions: a. This buck converter does not have reverse polarity protection. Always verify the correct polarity before wiring to prevent damage. b. Ensure the input source provides sufficient voltage and power for the connected device. c. The output voltage must match the device requirements, and the load power must not exceed the converter’s maximum capacity. Accessory styles and colors may vary by batch but do not affect functionality. Color: Yellow & Silver Material: ABS Package includes: 1 set x Lithium battery adapter step-down module Note: Light reflection and display settings may cause slight color differences between the image and the actual item. Measurement tolerance: +/- 1-3 cm.