Sylvania H1 ST BP 8 TWIN SilverStar 12V 55-Watt High Performance Halogen Headlight Review

The Good:
Looks wise they are somewhere in between regular halogens and HID Xenons. Brightness is maybe 15-20% more than the regular halogens.

The Bad:
While I've better luck with their lengetivity compared some other users, the first set lasted about 11 months (both blew out withing 3 weeks of each other).

The Ugly:
The second set already has one dead and it they are only 9 months old.
Plus, this may be a coincidence but it seems they hate cold weather. Each time they blew out was when temps dipped below 25F.

Spend a bit more and buy PIAA Extreme Whites or Hellas. They have been known to last 5 times as long (relatively speaking)

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Product Description:
Sylvania SilverStar 55-Watt High Performance Halogen Headlight is fashioned for brighter and whiter light. It has dual filament for both high beam and low beam. 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.

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