External Knob
Viewing Area: 90x40mm
Filter size: 110x90X11mm
Ultraviolet ray transmittance rate: 313-365nm< 3.4x10-6%
Infrared ray transmittance rate: 780-1300nm< 0.0027% 1300-2000nm< 0.0097%
Dark shade range: DIN9-13
Light shade number: DIN3
Switching time: 1/20000s from bright to dark
Recovery time: 0.1s to 0.8s from dark to bright
Power supply: Solar cells
Eye protection: EN379 1/2/1
Face protection: EN175
Auto-power on/off: Yes
Net weight: 460g± 10g.

Inner package: L× W× H=23.5× 22.5× 31.0cm, materials: Carton
Outer package: L× W× H=49× 47× 33cm, 4 in 1, materials: Carton
Qty per 20FT container: 1500PCS.