The Casablanca W-28W Dual Slide Wall Control is not compatible with all Casablanca fans. This wall control can not be used with XTR200 motors. One Casablanca fan which is compatible with this wall control is the Academy Ceiling Fan series. This accessory is an option for 3- and 4-Speed models. The W-28W provides four fan speeds and full-range light dimming, noise-free circuitry and quiet operation. Installation requires a third wire for installation. This item is sold one per package. In any installation, to reduce the possibility of electrical shock be sure that the power is turned off at its source (fuse or circuit breaker). All electrical components must be installed in accordance with national and local electrical codes. To reduce the risk of fire and electrical shock, this light fixture should be used only with UL, ETL and CUL Certified Casablanca ceiling fans. Casablanca Fan Company is dedicated to bringing consumers quality in every detail. Each Casablanca fan is created with an eye for timeless design, assembled with care from the highest quality parts, and engineered for superior energy efficiency, to be a classic fixture in the home that is enjoyed for generations. Casablanca products represent the successful synergy of elegance, versatility, efficiency, endurance, and comfort. Our goal is guaranteed satisfaction in our long-term relationships with customers, which is why we offer the most comprehensive warranty and service programs in the industry.