Brushless motor moderatoris non penicillo, ergo vincit Drawback de penicillo motor controller. Ita habet defectum de penicillo motor controller? Infra parva faciunt. I. Friction, est magnum, quod est motricium moderatoris ad uti post tempus tempus mos occurrant quaestio, opus ad aperire motricium moderatoris ad mundare in ipsum penicillo et moderatoris, tempus-consumens et laboriosum. II. Febris est magnus, vita brevis, hoc est quod eius structura ratio, penicillo et commutator de contactu resistentia est maior, altiore resistentia est maior, securus ad calorem. Si temperatus est nimis, tunc erit demagnetization magnetica ferro, motor controller perficientur degradation, et afficiunt servitium vitae a penicillo motricium moderatoris. 3. Low efficiency, output power is small, because there are problems fever brush motor controller, in large part because the current on the internal resistance of the motor controller to doing work, so lead to a large part of electric energy is converted to heat, resulting in a motor controller output is not big, the efficiency is not high also. Supra vincere a Brushless motor controller habet defectus de penicillo motor controller.