1Applicable Model: The 3 speed ac blower switch is for vehicles, trucks. Please confirm whether it is consistent with the product you want before buying to avoid unnecessary return. 2OE Number: The part numbers for reference are SW2000, 1550182, 35701. Please confirm whether it is consistent with the OE you need to avoid wrong buying and other problems. 3Adjustable Speed: The air conditioning blower switch can provide multi speed wind control function, and the owner can choose the appropriate wind speed according to the demand to achieve a personalized air conditioning experience. 4Safety Protection: The air conditioning rotaring blower switch has overload protection function, once the current exceeds the set value, the switch will automatically cut off the current, avoid overheating or circuit failure, and protect the line safety. 5Durable Material: The Ac volume control rotating knob is made of durable and reliable material, high strength and wear resistant, having long service time.