Suitable for FS40 FS35 floor fan, table fan, shaking head fan, electric fan, motor head, general-purpose motor Suitable for 16-inch (400MM) fans of assorted manufacturers All manufacturers of FS-40 FT-40 can be used. Note: This motor is supplied with a starting capacitor, four-wire. The motor of a few followers is 5-wire, and the capacitor is external. When installing, get rid of the unique capacitor and do not connect it. Black is the main power cord, purple is high speed, white is medium speed, and blue is low speed.