will there be any negative outcomes if i use 10,000k bulbs in a oem hids?
02-03-07, 12:30 AM
#16
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Also keep in mind, the further off the bulb is from white (4000-4500k) then the worse your CRI will be. This is very important because even the OEM HID bulb at 4300k only has a CRI level of approx 70. With the blue/purple bulbs that level will be reduced much further. (CRI= color rendering index, basically a measurement of how well a light source can render colors. 100 being perfect color rendition, and 0 being monochromatic) Halogens are around 99 while 4300k HID's are usually around 70. You want to be able to distinguish the road from grass or a curb. Your eyes will have a very difficult time doing that when you can't see the different colors and shades at night! This is also why blue bulbs make it harder to see at night. Their light output is diminished already from the colorshift to blue(less lumens), and also your CRI is reduced. Blue light will also trick your eyes into thinking you see more, but in fact you don't. Just try to look into the distance with colored bulbs.
Jeff
Jeff
02-03-07, 04:01 PM
#18
This might be one of the most educated posts I have read on here but your information for the most part is true but the info is outdated. Alot of bulbs are now being coated with a rare earth phosphur, that will give a CRI rating of 90 or higher to any bulb including incandescent. You will notice vision being effected around a CRI of 60. I have worked closely with NEC, talking bulbs, CRI and K make me all geeky!
I think the bigger factor for HID's having such a low CRI may be due to the fact that it is a high frequency pulsed light/arc and not a continuous light source like halogens. Kind of like how the low power/institutional/very white flourescent tubes have that blinking/flashing look because of the 60hz power source. Those tubes have terrible CRI, makes my go dizzy after sitting in a room for a while with those lights.
Yeah, talking about all this lighting brings out the inner geek in me lol. Out of all my friends, I think my knowledge in lighting compared to them is at least a factor 20:1
Either way, I get annoyed when a ricer pulls up with a horrible HID kit 8000k or something with glare all over the place and tells me that his lights are BAD AZZ and he can see everything. I just give him the "WTF?" look. I will admit, higher K bulbs look nice. I put them on my car when going to car shows...heh. For normal driving, I stick with my 4300K's running on boosted ballasts
02-05-07, 02:29 PM
#19
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I had purple/violet HID's like that before on my benz. It was a 8000K kit and I couldnt see squat. Got pulled over a bunch too. I eventually changed them out to 4300K.
02-05-07, 03:17 PM
#20
Lexus Test Driver
While many people like 10000k, the drawback is reduced light...and it looks a little silly to me.
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