What is this?This is a 3 Speed 4 Wire Switch Control Pull Chain Switch Replacement for home applications, mostly apply for Ceiling Fans, Wall Lamps, Cabinet Light.What will I get?Product Name: Ceiling Fan SwitchModel: ZE-268S1Function: OFF, L-1, L-2, L-3Electrical Rating: 3A 250VAC/6A 125VAC/3(1)A 250VACMaterial: Plastic, CopperColor: Red, Gold TonePackage Content: 1 x Pull Chain Switch, 1 x StringAre there any advantages of the product?Adjustable Length - Switch comes with 120mm pull chain length and a string, you can cut the desired length of the chain for installation.How to use it ? Disassemble the switch directly instead of cutting off the old switch circuit , pry off the upper and lower cover and pull out the wire, and then install the new switch. Just insert the thread head into the thread hole and fix it.