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Not sure of the price diff, but seriously the Sylavania versions are NOT blue. They are not the blue coated ricer bulbs. If they were, I would NOT have them. I would have returned right away.
Originally posted by bimmerphile
For the Osram Silverstar vs Sylvania Silverstar debate:
This is the last time I am going to go over this
Osram Silverstar = Good (clear bulbs)
Sylvania Silverstar = Not good (silver coated blue coated bulbs)
Osram and Sylvania do NOT make the same product
While the Silverstar bulbs are not HID, they do contain a fair amount of Xenon gas. This, when combined with the normal Halogen chemistry of the bulb, results in a 50% increase in lumens with the Osram silverstars, as well as a "whiter" output (higher color temp, see above).
The Chemistry of the Osram and Sylvania silverstars is the same, however, the light output and color temp is grossly different. this is due to Sylvania coating the bulbs blue, and then silver, so that the bulbs don't "appear" to be "Rice." This is purely marketing, as it serves as A DETRIMENT to light output. Why? Simple physics. Everyone learns in grade school that ROY G BIV makes up the visible light spectrum. In order for the blue color to work, the blue pigment on the bulb will absorb the other wavelengths, and only allow transmission of the blue wavelengths. Thus, you have effectively decreased your light output from containing ROYGV, and are only allowing the transmission of Blue and Indigo. Kind of seems silly, now doesn't it?
I'm not discounting the fact that your bulbs are a great improvement over stock (the 30% figure is thrown around), but they ARE blue coated, and that does hinder output. :?
If you like that kinda-HID look that's all that matters though. Whatever makes ya happy.
The bulbs, when on, produce a brighter, whiter light than what you get with a sealed beam. That is all I can tell you, they are NOT blue.
Colorblind peeps have trble with green and red, not blue and white. Haha.
:D
I know, it was a joke.. ;) and those bulbs are definetly blue, maybe the light output is white, but you can't deny the blue coating reflecting on your lights.
Wasn't trying to deny whatever coating may be on the bulb. Just that the light produced is not blue. And I was not looking for a "look", but better lighting. I was there in the store, they had them, I tried them, and I do like them. They are better than what I had, so, it's all cool.
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