Filter size(mm) 110×90×9Viewing Area(mm) 98×40 Light state DIN.3 or DIN.4Dark state DIN.9-13Switch time(s) 1/25000Delay time(s) 0.6Power on/off Fully AutomaticPower supply Solar-li,No battery change requiredRate of UV transmittance 313nm<0.00006% 365nm<0.00006%Rate of IR transmittance 780~1300nm<0.003% 1300~2000nm<0.009%Eye protection EN379 1/2/1 Weight 420g Available color: Product with different color can be supplied according to customer's requirement.

All products meet to ANSI Z87.1 and EN 379 standards

auto-darkening welding helmet