a co-worker's wife sells scentsy, and i ordered the replacement 15 w bulbs for my (not scentsy) nightlight warmer. they were $1 apiece, so i ordered 2 plus one of their only other bulbs, a 25 w. didn't get them yet, but seeing the watts for the bulbs led me to check 2 of my (many) electric warmers. i have 2 punched tin warmers, filled with holes for the designs, and both work fantastic for my tarts, and any others i have ever used. one is 8in. in diameter and 5in. high & takes a 25w bulb. the other is larger-almost 14in. in diameter & 61/2 in. high and uses a 40w bulb (this one is as large as a revere style candle lantern). so, based on the fact that they sell only 15 & 25 watt replacement bulbs, i am guessing that the largest scentsy burner is using the 25w bulb. so, i tried the 25w bulb in the larger warmer. yeah, it melted, took almost an hour, and there was next to no throw, even letting on for another hour. have to agree with Stella-too cool-poor throw. on the other hand-a friend of mine did get a burner from scentsy, and has tested 2 of my tarts in it. she says they melt fine and smell great! i have been using 3/4 CBL 129 (candlewic) OR 4794 votive with 1/4 415 mixed. kris