Welding Mask

1).Light state: Din4 ;Dark state: Din9-13 ( stepless Adjustment) 2).Switching time: < 1/25,000s at room temperature 3).Delay time: Stepless Adjustment 0.15S 0.80S 4).Sensitivity : Stepless Adjustment 5).Battery:Replaceable Li-Miand solar combination(min. Lifetime: 5,000 welding hours) 6).Viewing area: 98 x 43 mm (3-6/7 x 1-2/3) 7). Weight: 490G (1 .08 Pound) Material of helmet: NYLON Available color: blue/ black8).Sample and shiping fees: paid by weaster union ,delivery by DHL,EMS.