Full featured welding helmet that gives instant eye protection when the arc is struck. Provides a clear view when not welding but instantly changes to the required amount of shade or filter when arc is struck. The large view screen (110 x 90mm) impact resistant welding helmet with grinding mode. External sensitivity control provides clear vision both prior to and during welding, whilst the high performance screen filters protect against UV and IR. Adjustable headband provides a comfortable no-slip fit while leaving the users hands completely free for working. Suitable for all kinds of welding types, including ARC, MIG and low amperage TIG. Screen size:110 x 90mm, Power mode:Fully automatic, Power supply:AAA battery + solar panel, Switching time light to dark:0.02ms, Switching time dark to light:0.04ms, Light shade:DIN 4, Variable shade adjustments:DIN 9 - 13, Arc sensors:2, UV/IR protection:up to DIN 16, Operating temperature:-5C - +55C, Weight:480g EN175 and BS EN 6100-6-3 and BS EN 6100-6-1