Relay Housing for PSU Control

I created this housing for two Relays controlled by the Raspberry Pi running OctoPi.

One relay toggles a simple desk lamp, the other one let's me remotely turn on/off the printer's PSU.

This is very practical if you're like me and a bit concerned about the PSU running all the time if not turned off manually.
I use OctoPrint's action events to automatically turn the PSU on when starting a print and turning it off in case a print fails and when a print job is done.

One hole is for the th