I bought one thinking that it would work to their claim that it was designed with shipyards in mind. Working in tight spaces and poorly lit. Well first mask I got, straight out of the box worked for a little bit, I was welding in the shop and it started flickering so I turned it to X-mode thinking its too bright. Nope still flickered and would constantly flicker so I got a warranty replacement less than 14 days after purchase. Not even 5 minutes of opening that new weld mask it was flickering just taking off the lens flims that come on new shields. It wasn't even on a medium or high sensitivity. I tried a brand new miller brand battery for that mask, same thing. I wanted to give this mask every chance because its a great design but 2 masks back to back not working hurts productivity. Its not like I'm inexperienced, I do nuke work on submarines and have used all kinds of auto shields and lenses.
Conspoorly executed, flickering lens, Rubber goggle hurts ridge of nose.