I would not buy on price alone...
I have two auto-darkening helmets. The first was a "cheaper" one that I bought in a rush, when I needed a helmet for an evening welding class. It was ArcOne. It works but not nearly as well as my second one. Which is a Jackson NexGen.
Of course, the NexGen cost $269, and that was a good price.
The downside of my cheaper helmet is that I just can't see what is going on as well as I can when using the more expensive one. The viewing area is the same, but the "view" is not.
I should have bought better quality to begin with. That being said, quality keeps going up and prices down on these electronic helmets.
Best thing is probably to try before you buy...Sometimes easier said than done... /forums/images/graemlins/tongue.gif