Design for brushless 500-800N electric wrenches, this precise controller board delivers efficient motor speed controller and stable power output with its heat dissipating aluminum housing. Featuring intelligent speed switching and broad compatibility, it seamlessly integrates with various brushless tool and lithiums batteries systems for versatilitys applications. Ideal for professional mechanics and enthusiasts requiring reliability torques management in industrial maintenance or automotive repair projects. Optimizes in demanding workshop , from assembly line production to heavy dutys construction site operations. To damage to the motherboards, please follow the requirement.