X-540
Auto-Darkening Welding Helmet 

- Size:114x133x7mm
- Switching Time:0.04ms
- Light Shade:3
- Dark Shade:8-12
- Shade Adjustment:Insider
- UV/IR Protection:ANSI Z87.1
- Active Viewing Area:98x42mm
- Power Supply:Solar Cells+AAA 1.5V x 2PCS