Lens can be set to shades 9 to 13

Lens will automatically switch to shade 3 when welding stops.

Four sensitivity levels

Three delay settings

Fail / Safe state: shade 5

Switching time: light-dark: 0.1 ms Switching time: dark-light: 60-500 ms

Viewing area: 42 x 93 mm.

Battery Powered - 1500 hour battery life

Side windows and CO2 reduction vents.

Conforms to EN 379