Adjustable Solar Auto Darkening Solar Welding Helmet Mossy Oak Camouflage CE ANSI Certified Auto Dimming Adjustable Dark Viewing Area: 3.62 x 1.66 in (92 x 42 mm) 1/25,000 Seconds Switching Time From Light To Tinted 0.1-1.0 Seconds From Dark To Light Switching Time By Variable Adjustment Knob Two (2) ARC Sensors For Consistent Dimming 3 Bonus Extra Replacement Lenses Included