STFU, you are 100% wrong, they absolutely do not. The HF helmet i had blocked visible light great and seemed like it was working but wasn't blocking UV. Then after a long welding project I had a rectangle sunburn centered on my eyes that peeled badly. I also noticed a permanent reduction in night time vision.
i dont know enough to 100% say this is BS but...
its pretty hard to believe.... and i've never heard of anything like it. were you not using a front side or back side protective lens? if the auto dark was working, that alone provides a high level of uv protection.
and just a sunburn, no gravel in the eyes feeling? whats a long project?
you would win a huge legal settlement if you could prove your claim!
i would believe you got a sunburn from reflected light off the lens (thru the back of the hood) over getting burned through an auto dark lens and 2 layers of protective plastic.
every layer adds to the protection. its one of the reasons i recommend everyone wear safety glasses under their hood when welding.
the biggest reason to not use HF hoods is you may get flashed, from delayed darking or bad sensors.
-on another note-
to everyone saying to use a fixed shade, what shade are you using? i use shade 12 the most. i dont see many shades other than shade 10, out in the field. for me its a game changer to be able to adjust the shade of my lens when needed.
ever notice most that weld for a living have darker colored eyes?
my eyes are blue, the color of your eyes is related to how sensitive they are to light. i didn't know this for some time and about gave up on welding until i got a good auto dark helmet and started playing around with the shade.
also 486 mention using a towel to cover the back of your hood when welding. and i too highly recommend somethign of this sort. allot of guys in the ship yard wore shirts with big hoods or cut necks so that you could put the hood over the top of your helmet, bloacking all back light. 3M actually offers a cloth piece to attach that does the same thing. it looks a bit goofy but i rock one on the hood i use everyday.
like this;