A welder is being weld in the workshop. You can see the resulting light welding machine in the photo is like a small sun instead. The light was dangerous, contain infrared rays and ultraviolet light. In the photo he is using helem protective tinted glass attached on the front that can filter out the harmful rays. Welding machines used by him is welding machine GMAW CO2 . He is my friend. And they are all in the photo is my friend too.