1.Viewing area 90mm×40mm(3.55×1.58in)
2.High quality black glass shade number selected from 9# to 13#
3.operation Temp -5°C to 55°C(23°F to 131°F)
4.Full face and front of neck protection
5.Specially designed headband for greater comfort
6.Meets CE/EN379/EN175 standards
7.Great for use with MIG/MAG,TIG and ARC welding
8.Total weight 460g

The auto darkening welding lens BSW-1F also can install in this helmet