auto-darkening welding mask

Detailed Product Description

FS-2C4 Filter Lens:

Overall size	110×90×10mm (4.33×3.54×0.39 inch)
Size of vision field	96×41 mm (3.78×1.62 inch)
Size of solar cell	95×15 mm (3.74×0.59 inch)
	101.5×45 mm (4.00×1.77 inch)
Material of Crust	High impact and fire-retardant ABS
Gross weight	110±10g
Emission prevented	Maximum Ultraviolet transmission rate (313-365nm) ≤ 0.001‰
Emission prevented	Maximum mean infrared transmission rate (780-1400nm): Shade 9 ≤ 0.2﹪ Shade 13≤ 0.014﹪
On-off	Auto on; Auto off
Shade No.	Light State: DIN 4
Shade No.	Dark State: DIN 9~13, Adjustable continuously
Switching speed	≤1 millisecond (From light state to dark state, 25℃)
Switching time delay	≤0.01 second, little time delay, applicable to Spot Welding
Switching time delay	About 0.1~0.5 second, Adjustable continuously
Operation temperature	-5℃~55℃