The Metal Electronic Speed Regulator Switch is designed for precise control of your car's heater fan. This variable speed motor controller allows you to adjust the fan's speed to suit different seasonal and temperature needs. Its construction ensures durability and reliability, making it a practical automotive accessory. The easy installation process makes it convenient for any vehicle owner. Features -Color:White -Material:PVC -Size:5.00X3.00X3.00cm/1.97X1.18X1.18in -This controller switch offers precise control over your vehicle's heater fan speed, ensuring optimal comfort in any driving condition. -Specifically designed for automotive applications, this switch ensures easy installation and user-friendly operation in all types of vehicles. -The adjustable fan speed feature allows you to adjust airflow to match different seasonal and temperature requirements, ensuring comfort throughout the year. -Built with firm PVC materials, this variable speed motor is engineered for durability and performance, even in the most demanding conditions. -Equipped with safety protection features, this dc speed controller prevents overheating and short circuits, providing reliable and safe operation at all times. Package list: 1 controller