flame-retardant PC, high temperature resistance, easy to clean and not deformed Simple, stylish, versatile, suitable for a variety of decoration styles Comfortable rotating button, stepless speed regulation, comfortable knob, easy to rotate and effortless The cold-pressed steel frame structure is more aligned with the panel, and the installation is and it is not easy to be damaged or deformed It is suitable for the installation and replacement of most brands of ceiling fan electric fan speed controllers