Deep ceiling rose light pendant - can house a smart relay eg Shelly Sonoff

thingiverse

I needed to house a Shelly 1 within a ceiling rose and it just wouldn't fit. Rather than buying a deeper section ceiling rose, I designed this with a mount. It housed a Shelly1 fine and worked a treat. You may want to test the threads to mtch your printer. If needed, you can always print the mount a percentage or two smaller.