1.Full face helmet by CE,ANSI Z87.1 certifications. 2. ... The response time of 1/25000s. 1. Model Of full face helmet: EH-226/EF9242.2. Fire resistanc: yes.3. Material ... lithium batteries be changed.10. Switching time Of full face helmet:a) Light to dark: 1/25,000s.b) Dark ... EF9646,EF9848.14. Colour Of full face helmet: blue,green,silver,black,yellow,red, And beautiful pictures, etc.spay-paint according ...