4-pole design for high torque and fast response CNC machined, high-strength aluminium housing for optimum heat dissipation Motor winding made of pure, double insulated copper wire Precision ball bearing for optimal running smoothness and extended service life Highly flexible silicone connection cable with soldered 4mm plugs High strength and polished steel 3.17mm rotor shaft Completely waterproof and dustproof ON / OFF switch with setup button S-BEC with 6V and 3A peak current Plug and Play, battery and motor plug already soldered Multiple protections: undervoltage shutdown, thermal protection and protection against signal loss. Simple programming via set button Separate programming port, easy connection of the LED program card (optional)