Torch or jet flame lighters are the most commonly used lighters among cigar smokers. They run on butane, a liquid gas that's easy to find and relatively inexpensive.
Do torch lighters use more butane?
Torch flames, especially triple, quad and quint torches, use considerably more butane than soft flame lighters. There are also soft flame lighters that use lighter fluid which need to be refilled more often and can potentially affect the flavor of whatever you may be lighting.
Can you use butane fuel for a torch?
A butane micro torch isn't much use unless it is filled with fuel. I use regular butane fuel from the hardware store for refills. Although you may think it is best to use “triple-refined” fuel to keep your torch head clean, I use regular fuel right off the shelf, and my torches work great.