This is a DC motor, which can't directly use 220 V household AC. please use switching power supply or battery power supply. It is recommended to use 12-24 V power supply with a current of more than 10 A. for motors below 5 series, it is recommended to use an adapter of about 4A or a power supply above lithium battery.
Ball bearing, cooling fan, long life guarantee
895, 795, 775, black 550, blue 550 are all equipped with ball bearing and cooling fan, which can automatically reduce heat, ensure service life and long life. (the strong magnetic 550, 540, 390 motors are of copper sleeve structure, without fan and ball bearing)