If the direction of rotation of the motor is not what we need, you can reverse the connection of the positive and negative poles, and the direction of rotation can be changed. The speed is the same, and it has no adverse effect on the motor. It can be connected to the DC power supply through the switch.
Zibo Zemei Motor Co., Ltd.
Address: Bei'an, Zhoucun District, Zibo City
Zemei Electric Wenzhou Office
Address: Qiaoertou, Lucheng District, Wenzhou