1.Protective Helmet, 2.Electro-optical technology of Germany. 3.Variable shade: ... to dark: 1/25,000s. Solar auto Protective Helmet EH-220/EF9040N0 Model Of Protective HelmetEH-220 1 Configuration ADF Model EF9040 ... 13 Storage Temperature -10°C~+70°C 14 TIG,MIG protective Yes 15 Weigh 0.48kgs 16 Frame Size 360mm*240mm ...