Auto Darkening Welding Helmet with Large Coverage and IR UV Protection for Shipbuilding Arc Tig Mig Mask Grinding Welder Protection Tool Shipbuilding Welding Helmet Review - Welding Apprentice Gear Remove the protective film on the viewing area. [Superior Eye Protection] Effectively blocks ultraviolet and infrared radiation, safeguarding eyes from potential damage. Check if all parts are intact (lithium battery is installed before delivery). Reduce sensitivity to avoid interference. It has a self-locking function design. For elastic adjustment, press the headband button. [Electronic Conversion] Helmets convert welding arc to electronic , magnifying and transmitting to the light valve for darkening to shield against ultraviolet and infrared rays. [Wide Coverage & High Efficiency] The auto darkening helmet provides excellent protection of the face and neck from electric arcs, thereby improving work efficiency. Wide Coverage TOOLIOM Large Viewing 3.94" X 3.66" Welding Helmet True Color Auto Darkening Lashade Solar Powered Shade 4/5-9/9-13 For Tig Mig ARC Weld Plasma Cut Grinding Welding Mask IMAGE: 2 (3) Adjust the buttons on the sides of the helmet to change the tension when moving up and down the helmet. It's fairly simple. The dial on the outside of the mask has numbers, typically ranging from 9–13, these refer to the DIN shade setting [Wide Coverage & High Efficiency] Automatic darkening helmet provides superior protection for face and neck against electricity arc, enhancing working efficiency. Welding Helmet Solar Auto Darkening Adjustable Shade Range 4/9-13 [Temperature and Humidity Resistant] Operating temperature range from -5°c to +55°c, ultimate storage temperature range from -20°c to +70°c, with relative humidity range of 20% to 80%.