Feature:
This product with low batter display，test function and replaced battery.
Lithium Battery Powered with Solar Backup.
Ample mask space and very safe structure.
Suitable for high welding operation temperature.
Welding or Grinding Selection.
Outside shade number and sensitivity adjustable can make the operators more convenient while operating.
Large view for window dimension for observation easily.
Right and left hander can select the suitable stile.
Auto darkening lens will automatically darkens to it's selected shade number when the light is detected.

specification:
Viewing for windows:92.5 × 42.5mm.
response Time:0.15ms~0.2ms.
retention time:0.4ms~0.8ms.
delay time: 0.1S~1.2S
Recovery time: 0.1S ~ 0.8S
Ultraviolet safeguard:< 0.0003%(313nm-365nm).
Infrared safeguard:< 0.027%(780- 1300nm).
<0.085%(130nm-2000nm).
Power:Lithium Battery Powered with Solar Back up
(The battery can be replaced)
Working temperature: -5°C ~ 55°C (23°F ~ 131°F)
Storage temperature: -20°C ~ 70°C (-4°F ~ 158°F)
Cartridge Size:110mmx 90mmx 9mm.
Light State: DIN4
Dark State: DIN9~ 13
Battery Type: CR 2450
Sensors: 2
Sensitivity Control: Knob Adjustable
Ideal for ARC/MIG/TIG/Stick Welding
Grinding Mode: Externally Controlled - Sets Lens in Permanent Light Shade

Package include:
1 x Auto-Darkening Welding Helmet
1 x user manual