Really? Are the Sylvania SilverLight's that bad? That's what I was initially looking at buying. Ya I definitely don't want a blue light, just something really white and bright.
Awesome man, thanks. You've pretty much sold me on them.Ever tryed Sylvania Xtra Vision lamps? (+30%) They're not that good. The Sylvania Silverstar is the Xtra Vision lamp with a blue tint added to it. Halogen lamps by nature produce alot of light in the yellow wavelength. How do you make it whiter? Add a blue filter. The opposite of yellow is blue. A blue filter reduces the yellow light, thereby making the light whiter (and dimmer). The reason those blue bulbs seem brighter is due to the amount of blue light they create. Blue light seems brighter to your eyes because it is the shortest wavelenght. Also, if you drive in the rain alot in areas without streetlights, you'll see alot less due to the blue light scattering in all directions and blind on coming drivers. (H.I.D.'s really do this!) The Sylvania SS have a very short life span (they claim 150hrs, more like 15hrs of life, and that's for low beam). They also claim 4100Kelvin color, more like 3600Kelvin. The Philips XP H4 produces +80% over stock, has a 250hr life span, has a color temperature +/- 3400Kelvin (very white for a non-tinted bulb) and costs about $35USD with the exchange rate, compared to $50 for the Sylvanias. I've tryed both. Hands down the Philips are better, you can actually see with them! Would you want to pay an extra $25 for the tint on these bulbs when compared to the Sylvania Xtra Vision (same with PIAA but even more money), which is what these bulbs really are? I've worked in lighting for many years, and can tell you that Sylvania auto halogen lamps are NOT the best value. (There commercial products are good.) Buy the Philips, you won't be disapointed. Also Google Philips Extreme Power H4; the results might amaze you. (They have won awards; don't remember the Sylvanias getting any!) One last point, the blue tint on these or any other halogen bulb will eventually burn off of the bulb and go onto your reflector thereby smoking up and reducing the effiency of your headlight housing; not worth it!
Hope that this helps