Welding Helmet Auto Darkening Din 9-13# Filter Lens

Description

Technical Specifications Shade Number In Light State：Din4# Shade Number In Dark State：Din9-13#(stepless regulation) Response Time： Return Time：rapid-0.5s slow-01.5 s Battery：Two AAA alkaline ones (min.lifetime is 3000 welding hours) Working Temperature：-5℃(23℉)to+55℃(131℉) Lens size ：90x40mm Dimension：120x95x12mm UV Transmittance：313nm≤0.00006% 365nm≤0.000076% IR Transmittance：780～1300nm≤0.003% 1300～2000nm≤0.009%