The luminaries are about 6" tall.
There is a little cutout in the back of the jug to insert the tea light.
Dad update: He is still in the hospital. They aren't sure when they will move him to the rehab center. The day before yesterday he began hallucinating and has been delirious ever since. The vascular doctor ordered an ultrasound to see if his carotid artery was blocked. All they could see was a little calcium, which he doesn't think would cause this. So we are all still waiting.