Wadfow Auto-darkening welding helmet

Viewing area:90??35mm
Cartridge size:110??90??9mm
Arc sensor:2
Light state:DIN 3
Dark state:fixed shade 11
Power ON/OFF:fully automatic
Sensitivity control:unadjustable,auto
UV/IR protection:DIN 16
Power supply:solar cells and sealed lithium battery
Switching time:1/25000s,from light to dark
Dark to light:0.2-0.5s auto
Low amperage TIG:???15amps(DC), ???35amps(AC)
Operating tep:-5???~+55???
Storing tep:-20???~+70???
Packed by color box