Hyundai HYWH-350F Light Duty Auto Darkening Welding Helmet

The HYWH-350F is a light duty auto darkening welding helmet from Hyundai.Solar auto-dimming welding mask is a high tech product with spectral filtering technology, photoelectric sensors and control technology, liquid crystal light-control technology. Solar auto-dimmnig filter (short for ADF) applies photoelectric sensor theory which makes liquid crystal change from bright state to dark state as soon as it receives arc light while change from dark to bright state when welding is finished to protect the eyes and facial skin of users from arc light, splash and harmful radiation of IR/UV.Covered by Hyundai 1 year warranty. Window Size: 90x35mmBright Level: DIN.3Dark Level: Fix 11Delay Time: 0.2-0.45SSensitivity: Unadjustable, AutoPower Supply: Solar Cell, No Battery Change RequiredSwitch: Fully AutomaticalUV/IR Protection: DIN 16Speed of Light Change: 1/5000 From Bright To DarkWorking Temperature: -5°C ~ +55°C