... new technology 2.Multi-layer LCD and coated glass Welding Mask / Auto Darkening Welding Helmets / Auto Darkening Face Shield 1. The shell is ... face, neck, ears and so on. 3. Use solar cell as a working power supply, automatic switch, reliable performance. The helmet is ... working when contacted light source; Isolated light source, the power automatic shut in 15 minutes 4. All the products we ...