It's frustrating to use these as it is impossible to start weld 2 handed due to having to flip the cover with a free hand. Its also too dark Din 11 shade so you have to start the arc blind. Lastly the head straps are uncomfortable and slips. Do yourself a favor spend some more cash and get an auto darken shield.
Useless product...no visiblilty at all. The inner white glass is also opaque. The outer glass is very dark even you can only see welding lighting. Straps are loose, It cant be wear properly. Thus you have to start welding with bare eyes, and then shut the lid and finish rest of job with some assumption or with help of some guidance, which makes the job very difficult, and you may infect your eyes, like I did.
The mask is good.. apparently this plastic feels cheap but apparently even the local masks are made of the same kind of plastic.. the lenses are actually decent, just wait for your eyes to adjust when you put the mask on..
The big problem is comfort.. the mask is extremely uncomfortable and can't be used for long..