welding helmet

Technical date Filter size(mm) 110×90×9 Viewing Area(mm) 98×40 Light state DIN.3 Dark state DIN.9-13 Switch time(s) 1/25000 Delay time(s) 0.6 Power on/off Fully Automatic Power supply Solar-li,No battery change required Rate 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 Package: Paper box Size: 23×23×33cm Box Size: 49×49×35cm 4PCS/CTN 1300PCS Per 20 feet container