... ( Stepless Adjustment outside ) 3,Switching time: < 1/10,000s at room temperature. solar welding mask1,Light state: DIN42,Dark state: DIN9-13 ... ( Stepless Adjustment outside )3,Switching time: < 1/10,000s at room temperature4,Delay time: slow/ fast:0.15s-0.80s5,Sensitivity ... & Solar Combination7,(Min. Lifetime: 5,000 Welding Hours)8,Operation temperature:-5°C(23°F)-+55°C(131°F)9,Viewing ...