Step-down transformer: 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, protects your battery and 12V devices Compatibility: Perfectly compatible with Milwaukee M18 battery 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, has overcurrent, overvoltage, undervoltage, overload, low load, short circuit, overheating protection, protects your devices from excessive . The battery adapter also added fuse holder and 30A fuse ensure you can use it safely Easy to use: We combine the battery adapter and voltage converter with 2 heat-resistant wires and fuse holder, make 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 range of applications: This step-down transformer is suitable for various 12V devices, perfect for upgrading power tools, ride-on toys, golf carts, car-trucks, speakers, surveillance equipment, LED strip light, work light or robotics etc. Color: red Material: plastic Package Contents: 1 x Step-down Transformer 1 x Power Wheels Battery Adapter 1 x Terminal 3 x 30A Fuse The above package content only, 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 measurement allowed error is +/- 1-3 cm.