... .1 certifications 3.Comfortable and lightsome. 1. Model Of LCD hood mask:EH-208/EF9848.2. Fire resistanc: yes.3. Material ... cells, two lithium batteries be changed.10. Switching time of hood mask:a) Light to dark: 1/25,000s.b) Dark ... arc/arc welding/Gas welding.15. Colour: blue,green,silver,black,yellow,red, And beautiful pictures etc,spay-paint according to ...