Auto Darkening Welding Helmet Mask

Features:
Provides full protection for the user's eyes and face against UV/IR radition during the entire welding process, even in the light state. The UV/IR protection level is up to Shade 16(DIN) at all times. It makes welders feel confortable with welding working.
Designed & Equipped with a special turnover(up & down) handband, making welder feel more comfortable while at work.
At the moment of your starting welding, the filter screen automatically changes from clear to dark in only 1/25,000 second.
Dark to clear delay adjustment: operator can vary the time for the filter to return to the clear state.
Sensitivity can be adjustable by turning the sensitivity-setting switch to high/low position.
At the moment of stopping welding, the filter screen automatically changes from dark to light state according to your set per-delay time.(Turning the time-setting switch to the "Short" position, it then can vary at 0.1s-0.3s; Turning the time, setting switch to the "long" position, then it can vary at 0.6s-0.8s)
Utilizes high performance solar cells as power supply and has 2 bulit-in 3V lithium batteries as backup power. No change of battery is required, and the battery life is raised to a new limit. Under normal welding conditions, users can expect a battery has a lifetime of more than 2 years.
Variable shade(DIN) from DIN9 to DIN13 can be adjusted by turning a shade knob.
In full conformity with related DIN, EN satety standards and ANSI Z87.1-2003 standards.
With fully adjustable ratcheting headgear, including a very comfortable sweat band(washable). The head gear allows you to position the helmet further or closer away from your face.

Note:
This welding helmet is not suitable for laser welding and oxyacetylene welding.

Specifications:
UV/IR protection: Up to Shade DIN 16 at all times
Light state: Shade DIN 4 
Variable shade: From DIN 9 to DIN 13 
Power supply: Solar cell & lithium batteries(2pcs CR2032) 
Power on/off: Fully automatic 
Sensitivity: Adjustable    
Grinding/Welding: Support 
Switching time: 1/25000s 
Delay time: 0.2-0.8s adjustable 
Operating temperature: -5 to 55 degree celsius (23 to 131 degree fahrenheit) 
Storage temperature: -20 to 70 degree celsius (-4 to 158 degree fahrenheit) 
Helmet material: PP 
Filter size: 11.6 * 9 * 1cm / 4.57 * 3.54 * 0.39in 
Viewing Area: 10.2 * 5.2cm / 4.01 * 2.05in
Item weight: Approx. 518g / 1.14Lb 
Package size: Approx. 22.9 * 23.4 * 32cm / 9.02 * 9.21 * 12.6in 
Package weight: Approx. 800g / 1.76Lb 

Package includes: 
1 * Welding Helmet 
1 * User Manual