*LARGE Viewing area 100x49mm(3.94"x1.93") *Dark shade 11 *No battery change required 100x49mm Fixed dark shade 11 Auto-darkening Welding Helmet Order No. WH4300001 1),Filter size: 110 x 90mm(4.33”x3.54") 2),Viewing area:100x 49mm (3.94”x1.93") 3),Light state:Shade 3 4),Dark state:Fixed shade 11 5), 2 arc sensors 6), Switching time from light to dark: 1/25,000s 7),Delay time:0.5s 8),Solar cell,no ...