2000-01 Dremel VersaTip Precision Butane Portable Micro Torch Mini Welder features an integrated ignition trigger with safety lock for easy start up and a variable temperature control allowing the adjustment of temperature and size of the flame and operates between 1022° F and 2192° F. 2000-01 Dremel VersaTip Precision Butane Portable Micro Torch Mini Welder features a versatile 14-piece butane accessory kit and refillable tank powered by liquid butane lighter fuel and can burn up to 75 minutes.