This controller is smooth. You can individually push in your Fan, Mode, Temp knobs and they pop out to allow for easy speed, mode, and temperature adjustments. When you are done push in the backlit knob and it pops back to allow for a flush, clean looking dash.
Mounting Hole: 4.875” W x 1.625” H
Overall Dimension: 5.11” W x 1.88” H x 2.08” D