Is there meant to be only a decorative glow through the porcelain or is there also meant to be more light shining up through an open top?
If the point is just the glow, I'd think everything could be attached to the lid, which could be any disc wider than the jar's top. The simplest implementation is likely an on-off switch with the assembly; as someone else suggested, you could probably find a rechargeable lantern that would fit within.
Sara Joy :happy_pepper: (npub1jpy…yfwv)