I did this one for a friend of mine. I had set everything up on my stage and was getting my palette prepped When I noticed that my crayons were liquefying. I guess they didn't like the new halogen lamp I was using! Luckily I have lots of crayons. I cleaned my glass and put a new batch in it. I had to move the light farther away and I had to turn it off periodically even then. It was worth it though. I like the warmer more intense light.