Frame Size ：110 × 90 × 9 mm（4.33″×3.54″×0.35″），Viewing Area：90 × 40 mm （3.54″×1.57″）， Power Supply：Solar and two lithium batteries(2×3V)，Switching Time：<0.0001 s ，Light shade：DIN 4，Dark shade：From DIN 9 ∼ 13，Operating Temperature：23 ℉ to 131 ℉（-5℃ ― +55℃），Storage Temperature：- 4 ℉ to 158 ℉（-20℃ ― +70℃）
Product Instruction：
① Automatically changes from light state to dark state when an arc is struck.
② The shade number can be set manually between DIN 9 - DIN 13 .
③ At the moment of stopping welding the filter screen automatically changes from dark to light state slowly so as to protect eyes from being hurt by the rest arc .
④ The ultra high performance of UV/IR Auto – Darkening filters provide full protection for the user's eye .
⑤ Protective plate which is free from stained chipping protects the filter screen from being damaged by sparks and particles .
⑥ You can enjoy the simple Operation to ensure the shade number is correct and adjust accordingly, And by moving the selector switch on the rear of the cartridge, the sensitivity to ambient light changes can be altered .
⑦ Helmet Material : Prevent Plastic
⑧ Helmet Frame Size： L ≥330mm W ≥220mm H ≥180mm
⑨ Filter + Helmet : 450g ~ 520g
