to focus the concentrated light beam on the work area at an intensity comparable to that of the welding arc to provide visibility through the user 39 s shield the light is provided with a clamp for ready attachment to the welding gun and has an adjustment for shifting the focus with a toggle and spring biased shock resistance to resist thermal shock a pyrex lens may be employed or a tungsten screen which further resists spatter ventilation is provided by openings in the reflector and the tungsten screen application_number US 81745786 A description the mig welding light of this invention is generally indicated by the reference numeral 10 and is shown in fig1 attached to the barrel 12 of a mig gun 14 the light is comprised of a parabolic reflector 16 which mounts on a quartz halogen bulb 18 and a lens 20 the reflector is connected to a shock absorbing swivel base 22 which in turn is connected to a clamp 24 which is fitted to the barrel of the gun the power source is provided by a plug in electric line 26 and on off switch 30 it will be understood that the transformer used in the conventional mig welder may also be employed by appropriate tapping of the winding as will be well understood the quartz halogen bulb is a low voltage type typically 12 volt for example and generates a high intensity light comparable to.