... -definition visual effect and LCD. Solar Helmet of security equipment. 1.Model of security equipment:EH-226/EF9242.2. Fire resistanc: yes ... cells, two lithium batteries be changed.10. Switching time of security equipment:a) Light to dark: 1/25,000s.b) Dark ... Adapt to ADF: EF9040,EF9242,EF9646,EF9848.14.Colour of security equipment: blue,green,silver,black,yellow,red,spay-paint according ...