Anet A8 extruder fan switch and plate

I wanted the LED illumination from my printer but not the continuous extruder fan noise when not printing. This switch plate has sorted the problem. The switch I used was https://www.rapidonline.com/sci-r13-270a-black-mini-rocker-switch-2p-spst-on-off-panel-mount-round-12a-250v-75-0057

Please note that this design works fine but I have since adapted it to provide a swivelling extruder fan. See 2057295.