Technical data:
Light shade: DIN 3
Dark shade: DIN 11
Switching time: ¡Ü0.5ms
Delay time: <1s  
Viewing area: 46*96 mm
Rate of UV transmittance: 313nm ~365nm <0.0002 %
Rate of IR transmittance:
780nm ~1300nm <0.027 %
1300nm ~2000nm <0.094%

Highspot:
1 Special filter is reflectional style
2 Power supply: Solar_lithium combination
3 Auto-darkening filter can be installed and replaled easily.
4 Outer and inner of filter is covered with protertive plate, It can be used for a longer period
Welding helmet size:
L*W*H: 350*220*220mm
Helmet weight: 450 g