Each lantern comes with two candles - one ready to light and the other stored in the base of the candle holder. UCO claims that each candles burns for 3-4 hours. Campmor sells the UCO-brand candles in boxes of six - for $3 (plus shipping)
I found on Amazon boxes of apparently identical candles -- 125 of them -- for $10 (plus shipping). Very enthusiastic customer reviews.
http://www.amazon.com/Tealight-Candles-W...3453&sr=8-1In the bottom two photos, the UCO candle is on the right. The much cheaper version from Amazon (which claim 5 hours of burn time) is on the left. At some point I'll compare burn times.
Forty of the candles fit nicely in a quart-size freezer bag, which in turn fits perfectly in an LL Bean soft kiddie lunch box that could hold 80 candles plus a couple of the Micro lanterns.
In the car I see utility for fire-starting, light and a little heat to warm up hands. For car camping they'd be some nice ambience on the dining table. At home they light up bathrooms enough to at least not trip during a power outage.