Watch and learn why auto-darkening welding helmets have caught on so completely with both amateur and professional welders. They let you see clearly before welding, but they also darken instantly as soon as the welding arc is struck. See actual darkening in action in this video. The footage above comes from my upcoming course, MIG Welding for Beginners. Add your name to my special list below if you’re interested in learning to weld properly and you’d like to be alerted to the opening of course enrolment. There’s no obligation if you get on the list and your email is always completely safe with me.