I have the lighting kit but the lights still look yellowish
ddmtuning.com sells bulbs by the pair. they're stupid cheap, so you could experiment. Your size is D1S right?
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Interesting thing is though when they're first fired up they emit a most obvious blue hue similar to a 7 or 8,000k HID bulb but only for about the first 10-20 seconds, have you noticed that at all ?? strange that does not happen in any of my other vehicles with HID's only my MB C Coupe

But getting back onto the topic of HID colour output, my understanding is once you get out of the yellow/white light spectrum you decrease or lose visibilty capability, the higher up the range or the more blue/violet you go to, then dark, wet and foggy conditions with that range of HID has reduced visibility and penetration.
I have noticed that this is the case on one of my vehicles fitted with 8,000k HID's, wet or dark roads are less visible than with my C Coupe or another one of my vehicles with 6,000k HID, the 8,000k may look nicer colour wise when the headlights are fired up, but visibilty is worse than the lower ranges of HID.
Interesting thing is though when they're first fired up they emit a most obvious blue hue similar to a 7 or 8,000k HID bulb but only for about the first 10-20 seconds, have you noticed that at all ?? strange that does not happen in any of my other vehicles with HID's only my MB C Coupe

But getting back onto the topic of HID colour output, my understanding is once you get out of the yellow/white light spectrum you decrease or lose visibilty capability, the higher up the range or the more blue/violet you go to, then dark, wet and foggy conditions with that range of HID has reduced visibility and penetration.
I have noticed that this is the case on one of my vehicles fitted with 8,000k HID's, wet or dark roads are less visible than with my C Coupe or another one of my vehicles with 6,000k HID, the 8,000k may look nicer colour wise when the headlights are fired up, but visibilty is worse than the lower ranges of HID.
Philips D1S 6000k UltraBlue = 85410UB = €193.10 excl. taxes
Osram D1S 5000k CoolBlue = 66144cbi = €179 excl. taxes
Pilot D1S 6000k = 07.117.73 = €50 excl taxes
Philips D1S 6000k UltraBlue = 85410UB = €193.10 excl. taxes
Osram D1S 5000k CoolBlue = 66144cbi = €179 excl. taxes
Pilot D1S 6000k = 07.117.73 = €50 excl taxes
So these are direct fit replacements for our OEM HID bulbs, look forward to your pics as it will help other people make a decision too
Also, something to note is the "LED headlamps" that Mercedes-Benz is beginning to transition are 5500 K (such as in the face lifted CLS). According to Mercedes, their studies have shown that the closer the color of artificial light (headlights) come to daylight, the less the strain on the eyes. Since daylight ranges from 5500 K - 6500 K, the LED headlights are much more "effective" and better at lighting surfaces versus bi-xenon headlights.
This is the main reasoning behind the transition from Bi-Xenon headlights to LED headlights. Not to mention the headlight life is much longer, and uses less power with LED.
@Jctevere: You are right on the Kelvin value of the lights. Mercedes uses the same Kelvin as sunlight. Wich our eyes can use the most from all the values.
Also, something to note is the "LED headlamps" that Mercedes-Benz is beginning to transition are 5500 K (such as in the face lifted CLS). According to Mercedes, their studies have shown that the closer the color of artificial light (headlights) come to daylight, the less the strain on the eyes. Since daylight ranges from 5500 K - 6500 K, the LED headlights are much more "effective" and better at lighting surfaces versus bi-xenon headlights.
This is the main reasoning behind the transition from Bi-Xenon headlights to LED headlights. Not to mention the headlight life is much longer, and uses less power with LED.
The higher up you go the worse the visibility is, I have 8000k in one of my other cars and the visibility at night is far inferior to my MB or even my Mazda with 6000k, the 8000k look sexy but are poor in actual lighting performance.

If I change mine I may stick to the 5000k max to still get good/proper lighting performance, don't really want to go backwards from the excellent OEM performance supplied by MB.
The higher up you go the worse the visibility is, I have 8000k in one of my other cars and the visibility at night is far inferior to my MB or even my Mazda with 6000k, the 8000k look sexy but are poor in actual lighting performance.
Thanks 190Benz, look forward to the pics

If I change mine I may stick to the 5000k max to still get good/proper lighting performance, don't really want to go backwards from the excellent OEM performance supplied by MB.
This is why there is a main industry shift towards LED headlights. LED headlights are capable of emitting 5500 K color with great lumen output. As a result, you have better visibility versus Bi-Xenon.
This is why there is a main industry shift towards LED headlights. LED headlights are capable of emitting 5500 K color with great lumen output. As a result, you have better visibility versus Bi-Xenon.






