Step-down Converter: Input Voltage: DC 18V-20V; Output Voltage: DC 12V; Output Current: 20A Max; Output Power 240W Max. Built-in low voltage protection; auto shut off if battery voltage is lower than 14.4V to protect your battery and 12V devices. Compatibility: Compatible with 18V lithium batteries, works with models 48-11-1815, 48-11-1850, 48-11-1820, 48-11-1840, 48-11-1815. Battery adapter connector is well-designed for a secure fit, easy to install and remove. Better Safety: Voltage regulator with built-in smart chip provides over-current, over-voltage, under-voltage, over-load, low-load, short-circuit, and over-heat protection to safeguard your devices from power damage. Includes fuse holder and 30A fuse for added safety. Easy to Use: Combines battery adapter and voltage converter with 2 heat-resistant wires and fuse holder. Simply install the battery into the adapter and connect the converter to your device. (Note: Battery NOT Included) Widely Applicable: Suitable for various 12V devices; ideal for power tools, ride-on toys, golf carts, cars, trucks, speakers, monitoring equipment, LED strip lights, work lights, robotics, and DIY projects. Color: Red Material: Plastic Package Contents: 1 x Converter, 1 x Wheels Battery Adapter, 1 x Terminal, 3 x 30A Fuse