4 nozzle bag dryer for silicone reusable bags

This is a 4 nozzle bag dryer. You could also use it to dry gloves. We use it to dry reusable sillicone bags. 

You need 4 switches, a 12v power supply and four 30mm fans

WIRING:

The video shows a PCB, but this is not required, I made it when I was thinking about possibly selling this design, but the wiring is very simple.

12v input positive (red) goes to all 4 switches GREEN wire
12v input negative(black) goes to all 4 switches BLACK wire + all 4 fans black wire (basically conenct all black wires)
Yellow + Red from switch goes to the fan it control's red wire

that's it!

Here's a video where I show this off: