Auto-Darkening Welding Helmet

الوصف

Auto-Darkening Welding Helmet Applicable scope: electric welding, argon arc welding and gas shielded welding, tin welding ***** of laser welding Technical parameters: Bright states: DIN 4 Dark states: DIN***3 free adjustment (other) Endoscopic size: **3 X *4X 6mm Response time( bright to darke) : < 1/*5, **0 seconds (normal temperature conditions) The return time ( dark to bright) : adjustable: 0.*5 S ~ 0.8 S Sensitivity (welding based on current size) : adjustable: low/high Battery: lithium battery + solar cells Visual range: **0X *9mm Ultraviolet transmittance: **3nm acuities **5nm acuities 0.****6% 0.****6% Uv protection: *5 levels Infrared ray through rate: **0 ~ ***0nm acuities 0.**3% 1, **0 ~ ***0nm acuities 0.**9% Working temperature: *5°C ~ **5°C (*3°F ~ **1°F) Storage temperature: **0°C ~ **0°C (*4 °F ~ **8 °F) Masks materials: nylon Weight: **0G