* Model: GL - 1001M    
* Viewing field: 90 x 40mm (3.54 x 1.58in)    
* Shade control: Light states: DIN4    
* Dark states: DIN9 - 13 Outside stepless adjustment    
* Switching time: Light - dark: 1/25000sec    
* Delay time: Dark - light: 0.2 - 0.3sec    
* UV/IR protection: Up to shade DIN16 at all time    
*Operating temperature: -5º C ~ +55º C    
* Power supply: Solar cells batteries, Two AAA batteries    
* Lens power control: With On switch, Auto-off 15 minutes (when not on welding)    
* Battery Indicator: Normal LED & LOW BATT LED    
* Standards CE: EN379: 2003; EN169: 2002; EN175: 1997    
* Helmet Material: PP (Fireproofing)    
* Total weight: 515g