Sylvania H1 ST SilverStar High Performance Halogen Headlight Bulb, (Pack of 2)
Sylvania SilverStar 55-Watt High Performance Halogen Headlight is fashioned for brighter and whiter light. This operates with internal gas pressure which significantly reduces the rate of tungsten evaporation. Its analogous non-halogen incandescent lamp operates the same filament temperature with greater luminance and efficiency. This combined effect of higher pressure and the halogen cycle give halogen lamp much longer life.