Compatibility: Designed for 18V li battery (not included), suitable for BL1850B, BL1860B, BL1830B, BL1840B, BL1820B. This battery features a tight fit and seamless integration, making it easy to install and remove; Voltage Converter: Converts DC 18V input to a DC 12V output, with a output maximum current of 10A and a power of 120W. This voltage reducer converter uses synchronous rectification technology to enhance conversion efficiency and stability; Enhanced Security: Equipped with smart chip that provides over current, overload, low load, over voltage, under voltage, overheat, and short circuit guard. Built in low voltage guard that automatically shuts off if the battery voltage is below 14.4V, preventing damage to your devices; User Friendly Design: Constructed with a aluminum case and resin encapsulation for resisting water, dust, and shock. Use two heat resisting wires to combine the battery and voltage converter together, ensuring user friendly connection; Versatile Applications: Suitable for a wide range of 12V devices, including motors, toys, RC cars, trucks, speakers, power tools, LED strip lights, work lights, robot projects, and more. This versatile voltage converter meets the needs of various applications

What's in the box
1 x 18V to 12V Battery Adapter