Note: There is a Hall driver board that 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 boardWorking voltage: 5V-35VLoad capacity: 15A 350wOvercurrent protection: yesMaximum power: 350WWorking environment temperature: 40~85 degrees CelsiusDimensions: length 63 X width 45 X height 28mmWorking : open loopProduct use: vehicle / household / industrial equipment, etc.Due to different batches, the appearance and color of the product , it does not affect the useColour:yellowMaterial:PCBtype:withPackage Contents:1 x Driver BoardOnly 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.