Viewing area:90×35mm<br>Cartridge size:110×90×10mm<br>Arc sensor:2<br>Light state:DIN 4<br>Dark state:fixed shade 11<br>Shade control: unadjustable<br>Power ON/OFF: fully automatic<br>Sensitivity control: unadjustable, auto<br>UV/IR protection: DIN 16<br>Power supply: solar cells+1*CR2032 lithium battery<br>Switching time:1/5000s,from light to dark<br>Dark to light:0.15-0.45s auto<br>Low amperage TIG:≥20amps(DC), ≥20amps(AC)<br>Operating temperature: -5℃~+55℃<br>Storing temperature:-20℃~+70℃<br>Packed by color box