Step-Down Converter: Input voltage: DC 18V-20V; Output voltage: DC 12V; Output current: 20A Max; Output power 240W Max. Built-in over and under voltage protection, automatically shuts off if battery voltage is lower than 14.4V, protecting your battery and 12V devices. Compatibility: Perfectly compatible with Milwaukee M18 18V lithium batteries, works with 48-11-1815, 48-11-1850, 48-11-1820, 48-11-1840, 48-11-1815 etc. Our battery adapter connector is well-designed, fits tightly to your battery, easy to install and remove. Better Safety: Voltage regulator built-in smart chip, features overcurrent, overvoltage, undervoltage, overload, low load, short circuit, overheating protection, protecting your devices from excessive damage. The battery adapter also has added fuse holder and 30A fuse ensures you can use it safely. Easy to Use: We combine the battery adapter and voltage converter with 2 heat-resistant wires and fuse holder, making it easier to use, just install the battery on the battery adapter and then connect the voltage converter to your device. (Note: Battery is NOT included). Wide Application: This step-down converter is suitable for various 12V devices, perfect for upgrading power tools, ride-on toys, golf carts, car trucks, speakers, surveillance equipment, LED strip lights, work lights or robotics DIY etc. Color: red. Material: plastic. Package contents: 1 x Step-Down Converter, 1 x Power Wheels Battery Adapter, 1 x terminal, 3 x 30A Fuse. Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.