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Home » Faro » Sylvania 9007 ST SilverStar High Performance Halogen Headlight Bulb (Low/High Beam), (Pack of 2) Reviews
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$ 19.99
Sylvania 9007 ST SilverStar High Performance Halogen Headlight Bulb (Low/High Beam), (Pack of 2) Reviews

Sylvania 9007 ST SilverStar High Performance Halogen Headlight Bulb (Low/High Beam), (Pack of 2) Reviews


Precio Reg. $ 49.99
Precio: $ 19.99
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"El precio más barato en Sylvania 9007 ST SilverStar High Performance Halogen Headlight Bulb (Low/High Beam), (Pack of 2) Reviews de amazon.com. Envío Rápido y Gratis. Antes de comprar, no olvide comparar precios nuevamente en amazon.com. Agregue al carrito mientras dura el inventario!"

Sylvania 9007 ST SilverStar High Performance Halogen Headlight Bulb (Low/High Beam), (Pack of 2)

Sylvania 9007 ST SilverStar High Performance Halogen Headlight Bulb (Low/High Beam), (Pack of 2)
  • Fashioned for brighter and whiter light
  • Dual filament for both low 55 and high 65 watt
  • Provides 100 percent street legal illumination
  • Ensure greater luminance and efficiency
  • Provides longer life
Sylvania SilverStar 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.

Precio de lista: $ 49.99 Precio: $ 19.99

What customers say about Sylvania 9007 ST SilverStar High Performance Halogen Headlight Bulb (Low/High Beam), (Pack of 2) Reviews?

  1. 26 of 29 people found the following review helpful
    1.0 out of 5 stars
    NOT BRIGHTER AT ALL, just a very creative marketing, November 11, 2009
    By 

    Verified Purchase(What’s this?)
    This review is from: Sylvania 9007 ST SilverStar High Performance Halogen Headlight Bulb (Low/High Beam), (Pack of 2) (Automotive)
    If you want marginally whiter light at twice the cost and quarter of the bulb lifetime, buy these lights. To pay 1/8th of the cost with the same effective brightness, go with NEW stock lights.

    These headlights are not brighter at all. They are rated at «maximum legal output» when new. Most new vehicles have stock headlights that are rated at maximum legal output when NEW too. Since it’s the same law for all headlight, they have the same light output.

    But it was very interesting to understand how the claim for higher brightness was made, which proved to be a really creative marketing :). Read on.

    «Brightness comparison is based on coil luminance measurements» (fine print from the package). Some physics here. This light is whiter. What that means is the coil is burning brighter (hence the claim based on «coil luminance»), but the bulb is blue tinted — a blue filter that cuts off the yellow part of the spectrum and thus makes the effective light look whiter to us. But after the filtering, the amount of light emitted is still the same as on the stock lights.

    About the claims of better illumination, the fine print states: «Headlamps dim over time 20% or more…[snip]… . Claims based on measured comparison between SilverStar at 100% and standard halogen bulbs at 80% light output.» Wow, tell me about apples to oranges comparison! Any NEW bulb will give you the same improvement, SilverStar is not better in any way, they even don’t claim that 🙂

    For those curious why the so much shorter lifespan, some more physics. Most of the light coming from incandescent style bulbs is in the yellow side of the light spectrum (hence they all look yellowish to us). To make the light whiter at the same effective brightness, the coil needs to be heated more, while filtering the yellow part of the light spectrum (thus wasting light energy) — net result, more heat, more energy waste, and a way shorter lifespan 🙂

    On another note, I don’t recommend trusting the rebates from Sylvania. Mine was declined, because «the item was not purchased from a participating retailer», even though the rebate was advertised and the form listed and downloaded from the Amazon product page. It’s not worth the effort arguing with them about $5, unfortunately.

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  2. 11 of 11 people found the following review helpful
    5.0 out of 5 stars
    Brighter than OEM and Legal, January 3, 2007
    By 
    Keith Lam «web developer» (Bristol, CT USA) –
    (REAL NAME)
      

    Verified Purchase(What’s this?)
    This review is from: Sylvania 9007 ST SilverStar High Performance Halogen Headlight Bulb (Low/High Beam), (Pack of 2) (Automotive)
    I replaced the original Sylvania bulbs in my ’02 WRX with these 4 years ago, one of them burned out, so I bought 2 more. One of the best prices I could find on the web was on Amazon. These are about the brightest legal bulbs that you can buy. Might want to check out the new Silverstar 2 version from Sylvania.

    Lumens: Low 1000 +/- 15%;

    High 1350 +/- 15%

    Watts: Low 55;

    High 65

    Color Temp: ~4000K

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  3. 7 of 7 people found the following review helpful
    3.0 out of 5 stars
    Better for visibility, don’t last very long, August 26, 2008
    By 
    D. Weyand (Beaver Falls, Pa United States) –
    (REAL NAME)
      

    Verified Purchase(What’s this?)
    This review is from: Sylvania 9007 ST SilverStar High Performance Halogen Headlight Bulb (Low/High Beam), (Pack of 2) (Automotive)
    Sylvania 9007ST BP 8 Silver Star Twin High Performance Halogen Headlight Bulb

    I’ve been very impressed with how much better these bulbs light up the road as compared to the OEM bulb for my vehicle. (2004 Mitsubishi Gallant)
    But the original bulbs lasted over 2 years and I am replacing these every 6 months (8700 +/- miles). After the first set burned out, I e-mailed Sylvania customer service and was sent a new set.
    Those promptly burned out 6 months later. When the latest pair went, the only reason I purchased them again, was because of the outstanding deal I received from Amazon. The price has since gone up, but it’s still half the price I would pay at the local parts store.

    Product Usability: 5 stars
    Product Durability: 1 star
    Product Value: 3 stars

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