Welding Helmet UN1000 This Welding Helmet is very popular in Europe,America etc. The Welding Helmet is also with CE cert. - Auto working and auto stoping completelyViewing Area90×41mmSize of Catridge110×92×11mmLight stateDIN 3Darken stateDIN 9 13Switching Time1/20000sDelay time0.6s 1.0sPower supply : Solarlithium combinationRate of UV313nm 365nm<0.0000034%Rate of IR780nm 1300nm<0.0027%1300nm 2000nm<0.0097%Operating Temperature-5 - +55Operating Temperature-5 - +55Helmet L*W*H 350*220*220mmHelmet weight 490g ±10g1150-1300 pcs per 20 feet container Material of helmet: PP