Basically, the solar disk fits up through the ring of the jar, no use for the lid here. I highly suggest that when you go to purchase your solar stick, take the wide mouth ring with you to test the fit.
Push the disk up through the ring almost to the point of pushing it all the way through. After you’ve done that, twist the ring back down on the jar. You might have to muscle this a little because it’s an airtight fit.
When not is use, disassemble and remove the battery for storage OR, put the extra lanterns in the backyard for a pretty wintery glow on those long nights ahead. They’re so pretty in snow!