e640 Auto-Darkening Filter
Patented telescoping headgear provides maximum field of view and balance
Sliding sensor bar is a must for production welding applications
Variable sensitivity control to configure arc detection sensors
Solar powered with replaceable lithium batteries for maximum possible service life
Exterior control panel for convenient configuration without removing your helmet
Grind mode, a must for grinding and very handy for plasma cutting
Welding helmet with automatic shade cartridge; manually adjustable 4/10 or 4/11
Ultraviolet/infrared protection (maximum at any shade setting)
Grind mode not available on the E640