Solar Auto Darkening Welding Helmet Arc Tig Mig Dimming Grinding Mask,Dimming Grinding Mask Solar Auto Darkening Welding Helmet Arc Tig Mig, Suitable for welding and grinding operation high temperature, Opacity: DIN 9-15 5 Level Adjustable,Auto darkening lens will automatically darkens to its selected shade number when the light from welder is detected, Mig Dimming Grinding Mask Solar Auto Darkening Welding Helmet Arc Tig.