Suitable for most kinds of welding mode Delay time can be selective the user's eyes and face a full protection against UV and IR radiation during the entire welding process, even in the clear state Sensitivity adjustment: you can according your working conditions choose Dark state Shade No: DIN9-DIN13 stepless adjustment Transition time: ≤2ms 22 ℃ (72 ° F) Delay time(s): Brand new