| Model: | LYG-S400S |
| Type | LY400S |
| Filter Size | 138.4mm×113.5mm×9mm |
| Active Viewing Area | 110mm×60mm（异形） |
| Light Shade | DIN4 |
| Dark Shade | DIN9～DIN13 |
| Shade Control | Internal Variable |
| Switching Time | 3/10000S |
| Sensitivity Adjustment | Stepless Control |
| Delay Time | 0.1S～0.8S |
| Power Supply | Li-battery&Solar |
| Rated Capacity of Li-battery | 1200mAh |
| Replaceable battery | Yes |
| Operating Temperature | -5℃～55℃ |
| Arc Sensor | 2 |
| Mask Material | PP |
| UV/IR Protection | DIN13 |
| Test | No |
| Low Battery | No |
| Grind | No |
| Cut | No |
| LED | No |
