Auto-darkening optical filter B315

for welding masks

The auto-Darkening Filter offer advanced technology for safer and more comfortable welding, Progressive multi coating filetr lens to protect users from visible or invisible (UV & IR) light at all time. Specifications Welding protection : For ARC / MIG and TIG Darkness range : Shade 9 ~ 13 Light state : Shade 3 Delay time : Automatic 0.1 ~ 0.6 seconds UV / IR protection : Up to DIN15 Cartridge size : 133mm × 114mm × 7mm Viewing size : 42mm × 98mm Switching speed : 0.04ms (1/25000 seconds) Power source : Solar cells + AAA battery × 2pcs , power auto on / off Operating temperature : -10°C ~ + 70°C Warranty : 2 years