Zing Ear WLD-07 Type R3L is used to limit the power on the ceiling fan light kit to 180W for all socket types by resisting the current of an electrical circuit. When the ceiling fan light kit (load) is consuming less than or equal to 180 Watts, the wattage limiter will not operate. If the load exceeds 180 Watts, it will switch off power to light kit for a moment. This power limiter is compatible with many fans including: Hunter, Hampton Bay, Westinghouse, Litex, Minka, Casablanca, Harbor Breeze, etc. Zing Ear WLD-07 R3L Switch Information Voltage: 120 VAC Model: WLD-07-R3L Compatible with Incandescent and halogen light bulbs Wire lead length: 6 inches Load Rating: 180 Watt – Acts when wattage limit exceeds 180 Watt Frequency: 60Hz Product dimensions: length= 1.5 inch / width: 1 inch / height: 11/16 inch UL approved Useful links FAQ page Wiring diagram