DC motors produce high starting torque and power to drive equipment such as conveyor belts, elevators, cranes, and hoists. They use permanent magnets or electromagnetic windings to convert direct current electrical energy into mechanical energy. These motors rely on voltage to change speeds and provide positioning. Brushless blower motors do not lose energy through friction and heat, making them more efficient and durable than standard motors. DC motor and control assemblies feature adjustable speed motors for use on constant, or diminishing, torque applications. DC permanent magnet motors can operate at multiple speeds and adapt to different power sources. DC wound field motors draw low amounts of electric current to power equipment for lifting heavy loads. Small engine starter motors turn over the engine in outdoor equipment by engaging a flywheel, driveshaft, or other type of gear. Stepper motors use electrical pulses to provide precise positioning and speed control.