Designed originally to meet the needs of the propane and laboratory gas market, the #1501 is perfectly capable of lighting welding gases as well. Although the lifespan of this product is not as long as our round file and three flint lighters, the Flat File Lighter features SHURLITE quality, and is guaranteed to spark vigorously and reliably. This is the ideal lighter for plumbers, occasional welders and hobbyists, and is the lighter most used in the laboratory as well.