The Viking 3350 Series auto-darkening welding helmets from Lincoln Electric feature top-quality LCD optics for a clear, natural view in varied ambient light settings. The solar-powered helmets, augmented with a user-replaceable lithium battery, have a substantial 3.34-in. height viewing area in a U.S. standard 5.25 x 4.50-in. sized cartridge shell. The helmets are ideal for…