12-24 VDC Fan Variable Speed Controller

Solid-state DC fan controller. Excellent for varying the speed of DC fans to control the amount of airflow. Will work on Fans from 12 to 24 VDC, rated up to 6 Amps. Rotary adjustment to vary the speed 0 -100%. Removable input terminal block makes wiring snap. Connection points for input and output wires are clearly marked. 

Dimensions: 3.5"(L) x 2.35" (W) x 2.25" (H) (including knob). 

Mounting holes on 1.6" x 3.1" centers