The LED hole is 36mm wide x 32mm tall so SCALE UP if yours are bigger. Make sure it clears the nozzle. Machine stops for filament change but just continue same color. See below-


Yes, it's sealed in there as long as the batteries last. I have these votives that run for 6 hours and stay off for 18 hours and last a long time.
https://www.amazon.com/dp/B08S6W81SG

UPDATE: The votive lasted about 30 days before it was too dark to see and now it's just a decoration :)
The author remixed this model.