Our brushless fan kits are pretty spectacular - so spectacular that they might pull a little too much air when you turn the air conditioning on. Or, more specifically, they make more noise and pull more current than is really necessary. If you want to easily adjust the fan's speed when the AC is on, you need this kit. Easy installation with very basic wiring (no soldering), and a 3D-printed bracket and knob (with labels!) specifically for this application to make adjusting the fan's speed as easy and straightforward as possible.