Features: This universally speed controller features a wide voltages ranges of 3V to 24V and a robust 2A current output, making it suitable for various power tools like grinders for good performances. Equipped with an easy to use knob for precise variable speed adjustment, plastic housing for protections, and compact dimensions of 87x49mm with a 115cm cable for easy installation. Ideal for DIYer enthusiasts, professional craftsmen, and hobbyists seeking efficient speed control for their power tool accessories. Suitable for workshops, home repairs, and industrial settings where adjustable speed is essential for tasks involving grinders or similar equipment. Enhances your workflow with this dependable grinder speed controller, designed for longevity and consistent operations in demanding applications. Specifications: Component:ABS Cable Length:Approx.115cm/45.28'' Voltages: 3V/12V/16.8V/21V/24V Available Package Includes: 1Piece Regulation Controller Switches note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.