solar helmet 1.The Viewing area of Inverter solar: 98*48mm. 2. CE,ANSI Z87.1 ... two lithium batteries be changed.10.Switching time of Inverter solar:a) Light to dark: 1/25,000s.b ... low or high Steplessly adjustable.12. Power on/off : Automatic.13. EH-401 Helmets Adapt to ADF: EF9040J, EF9040, ... argon arc/arc welding/Gas welding.15. Colour of Inverter solar: blue,green,silver,black,yellow,red, And ...