if you use it in the open it works and has a nice lens but for a tight space hood it sucks miller needs to take this good idea back to the drawing board. to sum up i have never been arc flashed so many times with an auto dark hood in my life. They can be used for all types of welding, and because theyre so dark theyre also the only shade that you can safety view a solar eclipse through. They block out 99 of UV light and 97 of IR Radiation and are the highest shade of glasses you can buy.
and there is no x mode just two weak arc sensors that if blocked in any way from direct arc will not sense the light but your eyes most certainly will. Shade 14 safety glasses are seriously dark. then the buttons on the side that turn it on and set shade and sensitivity are very easy to switch and if you are in a tight space you will bump them and change the settings and then get arc flashed when you strike the arc. it also fogs over quickly usually be for i can get my big head into the tight space I'm trying to weld. also if your work place requires safety glasses you have to remove them to wear the mask. it also must be wore or you will arc burn the heck out of your forehead and or ears. first off the blue hood is not made for those of large head its very tight for me at a 71/8 hat size. i have found this mask to be less then good for the job. I picked this up to replace my leather hood for tight space welding.