From what I've read there are two types of these lenses. Spot and linear. The spot lens is suppose to be the better, hotter lens. I removed one from a TV last summer but it turned out to be a linear lens and while I was able to melt plastic and burn wood it would not get really hot like a spot lens. There are plenty of youtube videos of people doing some really cool things with these lenses......and then there are the others...... Hold my beer and watch this!
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