helmet:

Optical Class:1/1/1/3

Cartridge Size:110×90×9mm

Viewing Area:98x43mm

Arc Sensor:2

Light State:DIN 4

Dark State: variable shade, 9-13

Shade Control:external, variable

Power On/Off:Fully Automatic

Sensitivity Control: Low-high, by infinitely dial knob

UV/IR Protection:DIN16

Power supply:solar cell+2xCR2032 battery Can ReplaceableSwitching Time:1/25000S, from Light to DarkDark to Light:0.1-1.0S AutoLow Amperage TIG:>10amps(DC) >10amps(AC)Grinding Function:yesLow Volume Alarm:yesADF self-cherk:yeswith CE (Helme+ filter)light:400lumens SMD flashlight1x16340 3.7v500mAh li-ion batteryCharging time: 2HRuntime：1.5Hmodel:100%-50%-flash focus function