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| Helmet Type | L -2200, L -B200, L -3200, L -4200 |
| Filter Size | 109mm×51.5mm×5.5mm |
| Active Viewing Area | 91.5mm×34mm |
| Light Shade | DIN4 |
| Dark Shade | DIN11 |
| Way to shift Dark State | inner control |
| Switching Time | 4/10000S |
| Sensitivity Adjustment | |
| Delay Time | 0.2S |
| Power Supply | lithium battery&Solar powered |
| Rated Capacity of Lithium Barrtery | 60mAh |
| Operating Temperature | -10℃～65℃ |
| Sensors to Weld Arc | 2 |
| Mask Material | PVC |
| Protect Grade against UVB | DIN15 |
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