Wagner Lighting Products has been on the leading edge of automotive lighting since the development of the sealed-beam headlamp.Headlight Bulb. Incandescent Sealed Beam. "Wagner lighting sealed-beam headlamps include a non-reflective bottom shelf that increases amp effectiveness, reducing glare, in rain, snow and fog; and a rust-inhibiting coat of lacquer on terminals to eliminate corrosion.
High-grade stainless steel terminals are used to prevent corrosion.".