• Professional-grade auto-darkening helmet with solar power
• User-selected variable dark-shades from 9 to 13; light shade 4
• Automatic shield-darken reaction time of 1/10,000 second
• Solar cell recharges internal Lithium battery-auto-darken works in all light conditions
• Rugged impact-resistant polycarbonate, ratcheting comfort-ft headband

For Arc, SMAW, MIG Heavy, MIG Light, GTAW, SAW, PAC, PAW plasma welding processes (not for Laser welding or overhead welding).