Black arc activated solar powered grindingwelding headshield activates instantly when arc is struckthis black headshield is also available in a range of other colours and designsfeatures grinding function so user can grind without the need to take mask offeye protection to en379light shade din 4manually adjusts from dark shade din 9 to din13shade din 15 uv protectionfor arc mig and tig weldingpowered by a combination of lithium batteries and solar cells