Light State	DIN4
Dark State	DIN9 – 13 (Stepless Adjustment)
Switching Time	<1/10,000s at Room Temperature
Delay Time	Fast/Slow 0.25S/0.70S
Sensitivity	Low/ High
Battery	Li-Mi & Solar Combination (Min. Lifetime : 5,000 Welding Hours)
Operation Temperature	-5°C (23°F) – +55°C (131°F)
Viewing Area	92 x 42mm
Catridge Size	110 x 90 x 9mm
UV Transmittance	313nm ≤0.00006% 365nm ≤0.00006%
IR Transmittance	780 ~ 1300 nm ≤0.003% 1300 ~ 2000nm ≤0.009%
Weight	400g
Material	PP
Colour	Red
CE Approved No.	C1532.1 WWH

HERO TECH AUTO-DARKENING WELDING HELMET WH4000

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