Auto-darkening darkening helmet

You can adjust the shade by the knob of “Shade” according to welding current, and you can also adjust the sensitivity of the filter by the knob of “Sensitivity” to meet the welding current from 10 A to 300A. The delay time is automaticallyregulated according to the welding machine. Have solar cell and backup battery of CR2032, so you can replace it if necessary. Technical Specification ·Cartridge Size: 110×90×10 mm ·Viewing Window: 98×43 mm ·Switch Time:(light to dark) 0.1ms (dark to light) ≤ 0.3 – 0.7S ·Ultraviolet Protection: < 0.0003%(313 nm), < 0.006%(365 nm) ·Infrared Protection: < 0.01%(780- 2000nm) ·Shade Range: DIN 4 / 9-13 ·Power: Solar with one CR2032 Li. Battery ·Weight: 500g ·Operating Temperature:- 5°C to +55°