Hey everyone, I have a 2015 V8 S and I have a quick question about the low beams. In the pics I have seen of F types, the low beams are like a nice blueish whitish color. Yet, my low beams start off at a nice white color but then immediately go to like a yellowish color. Is that suppose to happen? Because they don't look attractive at all.

 

The lights on my '16 V6S remain a bluish white.

I thought the V8S model was limited to MY2014.

 

V8 S also comes in 2015 year. Maybe I should go see a dealer?

 

Cameras will never capture the true color output. Depending on how often you use your low-beams, HID bulbs have a burn in process. New HID bulbs will often start off with a yellowish tint. As they start "wearing" in, they will gradually start turning whiter and more bluer

Keep in mind that OEM HID bulbs are designed to replicate sunlight color temperature which can range anywhere between about 4200k-5000k. The higher you go up in color temperature, the more white and blue the lighting output will be at the cost of reduced light output.

 

Yeah, that is supposed to happen. Very doubtful that there is anything wrong with your low beams. Why? All xenon bulbs change color after turning them on, as the high voltage discharge vaporizes the metal salts in the bulb packet. Also, true bulb colors are very difficult to accurately capture in pics

The OEM bulbs are rated 4300K. 4300K is the bulb rating most commonly used by OEM manuf's as it gives out the most light (lumens). Once warmed up, a 4300K bulb will show some yellow as you have seen. Over time (100+ hours of use), the bulb's color will shift somewhat towards the whiter end of the light spectrum; but, it'll never get up to the blue-white color you see at start-up.

To help eliminate the yellow-white color, you can change out to bulbs with a higher Kelvin rating, which is what I did. See here: https://www.jaguarforums.com/forum/f...lights-122393/

 

Am I the only one that was reminded of Frau Blücher?

 

If they're both the same color they're probably working right, and for what it's worth, bulbs in the 4000K-5000K (warmer) color range put out the most LIGHT, bluer bulbs may look 'cooler' but light output is actually less.

 

I hear a horse whinnying in the distance.

 

Oh okay, that makes sense. The car only has around 3000 miles on it.

 

While it is true that bulbs with a lower kelvin rating put out more light than bulbs with higher ratings, the beauty of the CBI (Cool Blue Intense) bulbs is that you get both light and color. OSRAM has figured out a way to keep the light in their CBI D3S 5000K bulb at the same intensity as the OEM 4300 bulb, i.e., 3200 lumens. I won't sacrifice light for color.

 

As an aside, when Xenon bulbs are at end of life they turn pink. They still put out lots of light, but there's no mistaking the color shift.

 

Is this before they go Nova (or gravitationally collapse)?

 

Not sure which. But, that would majorly explain why my lights went out just after passing one.

 

Ok, cool - didn't know they'd advanced them - anything that's as bright and closer to daylight color temp will be an improvement!