The coiled beeswax candle is fed through a clamp and then lit - so you choose how much candle to burn: every 3 inches provide about an hour of candle light and the entire coil will give you 144 hours. At $27 for a refill, it'll cost you about $0.19 per hour to burn this baby!
From the Upcoming ueue, submitted by Jake.
Though, it is good 17th century design come back in a new package.