frame Size: 114*133*6.2mm (4.48" *5.23" * 0.24")
Viewing Area: 96*46 mm (3.79" *1.81")
Range of UV/IR protection: Up to shade DIN 14 at all time
Light Shade: DIN 4
Dark Shade: From DIN 9 to DIN 13
Power on/off: Automatic

Switching Time
(light to dark): 1/20, 000s
(dark to light): Low to high 0.05-1.2s choice of 4levels, red LBD direction
Sensitivity: Low to high choice of 4levels, red LBD direction, adapt to TIG, MIG
Power Supply: Solar cell and two 3V lithium batteries