Fangrui Product Details Adopts Abs Flame-retardant Housing, Wear Resistance And Can Provide Long Service Time. The Governor Starts Slowly And Has A Soft-start Function. 400w High Power Can Provides Stable Performance. Corotation And Reverse Adjustable, Easy To Adjust According To Your Demands. One Button To On/off The Motor, And Please Disconnect The Powersupply When It Is Necessary To Stop The Operation For A Long Time. Specifications: Name: Speed Controller Model: Us-52 Power: 400w Colour: Dark Green Material:abs Due To Different Batches, There May Be Differences In Product Appearance And Printed Text, Which Will Not Affect Use Package Contents: 1 X Motor Speed Controller Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.