Solar Powered Auto-Darkening Welding Helmets

The data of Solar Powered Auto Darkening Welding Helmets are as follows: Specifications: Light state: DIN3 or 4Dark states: DIN9 (8)-13 (12) (Stepless Regulation)Switching time: <1/10000S at Room Temperature Delay time: Stepless adjustable 0.1 0.8s Sensitivity adjustment: Stepless adjustable Batteries: Li-Mi & Solar Combination (Min. Lifetime: 5000 Welding Hours) Operating temperature: -5 - 55oC Viewing area: 98 x 44mm (3-4/5" x 1-4/5") Size of filter cartridge: 110 x 90 x 8 mm (4-1/3" x 3-1/2"x 1/3") Rate of ultra-violet transmittance: 210λ / 313Nm, T<0.00006%; 313λ/ 365Nm, T<0.000061% Rate of infrared transmittance: 780-1400Nm, T<0.003% Weight: 430g (1 Pound) Material of helmet: nylon