![Amazon.com: Flex-A-Lite Variable Speed Controller and Relay Kit with Thread-In Temperature Sensor, Fan Controller With Temperature Probe (31163), Car Parts, Black : Automotive Amazon.com: Flex-A-Lite Variable Speed Controller and Relay Kit with Thread-In Temperature Sensor, Fan Controller With Temperature Probe (31163), Car Parts, Black : Automotive](https://m.media-amazon.com/images/I/71YKt-R3OmL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Flex-A-Lite Variable Speed Controller and Relay Kit with Thread-In Temperature Sensor, Fan Controller With Temperature Probe (31163), Car Parts, Black : Automotive
![Amazon.com: Flex-a-lite 33055 Electric Fan Variable Speed Control Module Quick Start 24V Electric Fan Variable Speed Control Module : Automotive Amazon.com: Flex-a-lite 33055 Electric Fan Variable Speed Control Module Quick Start 24V Electric Fan Variable Speed Control Module : Automotive](https://m.media-amazon.com/images/I/61drQEr6UCL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Flex-a-lite 33055 Electric Fan Variable Speed Control Module Quick Start 24V Electric Fan Variable Speed Control Module : Automotive
![Amazon.com: uniquegoods CCMFC 12V 2A DC Motor Speed Controller Adjustable Variable Speed Switch PWM DC Voltage Switching Regulator Control Speed of a DC Fan : Industrial & Scientific Amazon.com: uniquegoods CCMFC 12V 2A DC Motor Speed Controller Adjustable Variable Speed Switch PWM DC Voltage Switching Regulator Control Speed of a DC Fan : Industrial & Scientific](https://m.media-amazon.com/images/I/61GJ2Az92hL._AC_UF894,1000_QL80_.jpg)