Review on SYLVANIA SilverStar Headlight Performance Replacement by Kenny Davey

Very efficient lamp for dark roads and landscapes. The lamp will become a little dimmer after years of use. For optimal brightness, it's probably best to replace them after four years. Much cheaper than LED light bulb for bright white light. Interestingly, the filament has a double seal. The lens is sealed and there is a secondary seal around the bulb. If beating out the stone causes the outer lens to fail, there is an inner glass enclosure around the filament to prevent light leakage. If the lens is broken by the stone, you can still use the lamp until you can replace it. This redundancy is useful for land and off-road drivers.