Originally Posted by DrIftKi7Vg
There's no such thing as 5500k, only 5000k. And the stock lights on a Prius is 4300k or 5000k. Don't know why you are seeing blue because 4300k and 5000k are white.
To my eye 5000k has an ever so slight blue (almost unnoticeable) while 43-4500k would be pure white. So the Prius I drove def had 5k's.
But this whole color temp thing can be tricky....next time youre in front of an Audi/BMW check out the blueish/purple hue around the edge of the beam. Look at the road in front of the car, and it'll be lit up white like 4300. BMW/Audi lights typically have the "bluest" looking ellipsoids.
The lens refraction in ellipsoid headlights gives the impression of a more "blueish purple" hue than the bulb itself actually projects.
Oh and there is a such thing as 5500k, even if no HID manufacturer makes a bulb in that temperature