Note: There is a Hall driver board needs a motor, and it can work normally only with a Hall: Without a Hall driver board, both without a Hall motor and with a Hall motor can be used. smoothness with Hall driver board is without Hall driver board BLDC wide voltage 6-60V power 400W DC -phase brushless hall controller/no hall controller, newly added 0-5V analog control speed regulation and function, forward and reverse control, pwm control speed regulation, the product is suitable for DC brushless hall/no hall motor with an electrical of 120 degrees Due to different batches, the appearance and color of may be different, which will not affect the use type:with Hall Colour:red Material:PCB Package Contents: 1 x Driver Board Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.