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Light bulb swap

2.1K views 8 replies 5 participants last post by  graffitiRR08  
#1 ·
I was looking to swap out the stock bulbs out of my 2005 Honda cbr. Are there any bulbs that shine blue without having to convert to HID?
 
#2 ·
Silverstar ZXE's are what you're looking for as an upgrade over stock. They do not shine "blue" because that is not what you want. You want pure white light...people with blue lights, to me, are not knowledgeable on the subjects of safety and efficiency.
 
#5 ·
You heard wrong.

Human eyes have the least amount of color sensing for blue; it's the hardest color for us to discern and the worst for low light conditions. In pure daylight, sometimes blue strobe lights are better for things like cop car light bars.

Also fake xenon/hid is ghetto as hell.
 
#6 ·
Physics :p





Actually....
The human eye is the most sensitive to blue light...
Our eye has cones to detect colors, rods for intensity.
Every curve represents a type of cones in our eyes.
Image

These three combined result in:
Image



As you see, the human eye is most sensitive to blue.


However, in low light conditions, the rods will take over,
Image

resulting in this graph:
Image



So... Would I use blue lights? Or more green/yellow?


Well, you just need something that emits light in similar spectrum as the human eye. LED, HID, halogen are actually all good choices.
Just don't use pure yellow, or pure blue, that will suck. If you light something red or blue, with pure green light, both will turn up pitch black.


Ok, I'm done being Mr.Knowitall now.
 
#7 ·
I rescind the vagueness of my original statement; in full, (searched results)

1. Red and green (which are, from the evolutionary standpoint, the same frequency, as the red and green cones are recent variants of one another while the blue cones are distinct, they use a different photoreactive enzyme) are the dominant *resolution source* for human vision, while blue cones are much more important for expanding our ability to detect color (chrominance). It's why we have more red and green cones than blue ones (IIRC the ration is 10:1, though that may be way off).

Since focus is much more important to spatial resolution (details) rather than color resolution, the human "autofocus" is biased to favor the red-green band. Blue gets short shrift because of its relatively minimal importance to resolution. An experiment: if you mess around with the three color channels of an image in a photo program like Photoshop, messing up the blue channel affects the final color image the least, given the same amount of "messing" (like noise or deresolution).

Last but not least: as noted, chromatic aberration means that the different colors won't quite match up. It's not normally visible, likely because our brains auto-compensate when combining the different cone inputs into the final image (Canon digital cameras recently acquired a similar ability.) Not everyone is going to notice the effect: this is probably because blue focusses "shorter" in terms of lens focal length than red. So, you are much more likely to notice "blue fringing" if your unaided vision tends towards the nearsighted side (like mine does), given the focus center on red/green -- and you'll see it worst with distant blue sources than near ones. If you know someone who has worse nearsighted vision than yours and wears glasses (and neither of you have astigmatism) try using their glasses and see what happens.

Thus, at night the easiest light on our eyes to discern details (reading a map, looking at gauges) is red (blue is the worst), which is why most gauges are amber or red, and the whitest light you can get for headlights is 4300k.

Image


Image
 
#8 · (Edited)
Yeah, but the red at night is only true when you need to see directly in front of you. There are no rods in the centre of the pupil, but there are red cones. For peripheral vision, you need green/yellow.

We digress though. Used to have the ghetto cold white bulbs in my old car. Didn't really see less or more, just thought it looked a bit nicer.
I do think it'd look nice on the 600RR to, as the centre LED is quite cold as well. Kinda bothers me too that the headlights are so warm.
 
#9 ·
Yeah, but the red at night is only true when you need to see directly in front of you. There are no rods in the centre of the pupil, but there are red cones. For peripheral vision, you need green/yellow.

We digress though. Used to have the ghetto cold white bulbs in my old car. Didn't really see less or more, just thought it looked a bit nicer.
I do think it'd look nice on the 600RR to, as the centre LED is quite cold as well. Kinda bothers me too that the headlights are so warm.

Couldn't agree more with fake HID's being "ghetto"...the ZXE's aren't that bad though they are a white light...maybe with a hint of bluish but I'd compare it more to 5500k HID's. If you don't want to do a full retrofit and still want the crisp white rather than the warm white of halogens, these would be a good choice.