Solar Auto-Darkening Welding Helmets for TIG and MIG

Specifications:
| Model: HM-2-GYE | Model: GM-2-GYB | |
| Dimensions | 4.5 x 3.5 x 0.35 in 110 x 90 x 9 mm |
4.5 x 3.5 x 0.35 in 110 x 90 x 9 mm |
| Viewing Area | 3.54 x 1.58 in 90 x 40 mm |
3.78 x 1.58 in 96 x 40 mm |
| Light Shade | 4 | 4 |
| Dark Shade | 9-13 | 9-13 |
| Ultraviolet Ray Transmittance Rate | 210-313 nm ≤ 0.00006%; 313-365 nm ≤ 0.00006% |
313-365 nm ≤ 0.0002% |
| Infared Ray Transmittance Rate | 780-1400 nm ≤ 0.003% | 780-1300 nm ≤ 0.027%; 1300-2000 nm ≤ 0.094% |
| Switching Time | From light to dark: 1/10000s From dark to light: 0.5s |
From light to dark: ≤ 0.0003s From dark to light: 0.5s |
| Operating Temperature | 23° to 131° F -5° to +55° C |
23° to 131° F -5° to +55° C |
| Power Backup | Lithium battery (3500 hours life) | Lithium battery (3500 hours life) |
| Total Weight | 15 oz (420 g) | 17 oz (490 g) |
