welding helmet filter FS-B6 UV/IR protective clas

Frame Size 110*90*9 mm (4.33 *3.54 *0.35) Viewing Area 96*46 mm (3.79 *1.81) Range of UV/IR protection up to shade DIN 16 at all time Light Shade DIN 4 Dark Shade from DIN 9 to DIN 13 Power on/off Automatic Switching Time (light to dark) 1/25,000s Switching Time(dark to light) 0.1-0.6s potentiometer adjust Sensitivity: potentiometer adjuststroke, adapt to TIG,MIG Power Supply Solar cell and two 3V lithium batteries Operating Temperature -5 55 Storage Temperature -10 70 Weight 0.108kgs Material ABS