Notices
C5 General General C5 Corvette and C5 Z06 Discussion not covered in Tech

Headlight Kelvin Value?

Thread Tools
 
Search this Thread
 
Old Jul 19, 2013 | 04:53 PM
  #1  
Suncityan's Avatar
Suncityan
Thread Starter
Advanced
 
Joined: Dec 2012
Posts: 97
Likes: 1
From: Georgetown Texas
Default Headlight Kelvin Value?

My C5 needs a headlight upgrade and there are a couple vendors on this forum writing about their "headlight projector upgrades".

Anyone that would pass along their opinion on selecting a Kelvin value to look for in an upgrade would be really appreciated.

My experience with "K" ratings is the bulbs used in my garage. There are multiple fluorescent fixtures mounted on a white ceiling and the first bulbs were very harsh and caused vision fatigue. Those were replaced with 5000K bulbs several years ago and they are very good.

Now I see headlight bulbs offered that are rated all the way up to 8000K. Wonder if that is ok out on the road - from my experience it would not be the best "K" value there either.

What do you think is the best?
Reply
Old Jul 19, 2013 | 05:24 PM
  #2  
bobeast's Avatar
bobeast
Drifting
15 Year Member
All Eyes On Me
Liked
Top Answer: 1
 
Joined: Sep 2009
Posts: 1,305
Likes: 80
From: Hollister CA
Default

Originally Posted by Suncityan
My C5 needs a headlight upgrade and there are a couple vendors on this forum writing about their "headlight projector upgrades".

Anyone that would pass along their opinion on selecting a Kelvin value to look for in an upgrade would be really appreciated.

My experience with "K" ratings is the bulbs used in my garage. There are multiple fluorescent fixtures mounted on a white ceiling and the first bulbs were very harsh and caused vision fatigue. Those were replaced with 5000K bulbs several years ago and they are very good.

Now I see headlight bulbs offered that are rated all the way up to 8000K. Wonder if that is ok out on the road - from my experience it would not be the best "K" value there either.

What do you think is the best?
IMNHO 5k is the way to go. Higher and you start to look like a Purple Honda Boy (not to mention lower light output). Lower and it starts to trend towards yellow. 5K is a good compromise.

You can't go wrong with anything RadioFlyer sells, if you haven't settled on a vendor.

Last edited by bobeast; Jul 19, 2013 at 07:31 PM.
Reply
Old Jul 19, 2013 | 07:22 PM
  #3  
Kmcoldcars's Avatar
Kmcoldcars
Melting Slicks
15 Year Member
Top Answer: 1
 
Joined: Jan 2009
Posts: 3,181
Likes: 286
From: Puyallup Washington
Default

Anywhere from 4000K, which is a slightly yellowish white to 5000K, which is a very slightly blueish white is fine. 4300K bulbs put out the most light, at approximately 3100 lumens, while the 4000 and 5000K put out about 3000 lumens.
I bought 5000K 55 Watt projectors from JW with the Hi-4 harness which lets the low beam HID lights stay on when going to high beam, so all 4 lights are on.
They put out a tremendous amount of light.
Reply
Old Jul 19, 2013 | 07:59 PM
  #4  
momo20's Avatar
momo20
Safety Car
20 Year Member
 
Joined: Apr 2004
Posts: 3,532
Likes: 79
From: pueblo co
Default

6000k is where you want to be...gives of a nice white/blue tint and plenty of useable light on the road..
Reply
Old Jul 19, 2013 | 08:15 PM
  #5  
Mr.Bill's Avatar
Mr.Bill
Race Director
 
Joined: Jul 2007
Posts: 18,681
Likes: 47
From: Reno is so close to Hell you can see Sparks , State Of Confusion
St. Jude Donor '12-'13-'14
Default

5K in my opinion is great, 6K will give you a bluish light which I didn't like at all.
Reply
Old Jul 19, 2013 | 08:34 PM
  #6  
steveovette's Avatar
steveovette
Instructor
10 Year Member
 
Joined: Apr 2009
Posts: 228
Likes: 0
From: Ottawa Ontario
Default

If you wear a baseball cap at work use 6000k or higher
If your over 20 and don't wear a ball cap at work use 5000K
Reply
Old Jul 19, 2013 | 10:18 PM
  #7  
JETninja's Avatar
JETninja
Melting Slicks
 
Joined: Aug 2010
Posts: 2,855
Likes: 78
From: Sammamish WA
WA Events Coordinator
Default

OEM is 4300K in the HID/Zenon world. So 5K gets you the most light output with just a tinge of Blue. 8K is for kids that get giddy over all that blue light, they are the weakest in actual light output that goes down the road. Both my Z and my M3 have 5K Hids and I like them very much...
Reply
Old Jul 20, 2013 | 12:47 AM
  #8  
racebum's Avatar
racebum
Race Director
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jan 2008
Posts: 16,027
Likes: 170
From: oregon
Default

5k

by 6k you're getting into the blues and light is reduced in the rain. higher kelvin bulbs tend to do worse off shiny surfaces
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-1

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-2

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-3

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-4

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-5

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-6

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-7

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-8

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-9

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
Old Jul 20, 2013 | 08:26 AM
  #9  
Suncityan's Avatar
Suncityan
Thread Starter
Advanced
 
Joined: Dec 2012
Posts: 97
Likes: 1
From: Georgetown Texas
Default

Thanks everyone for your input, now all needed is settle on a vendor. That will be hard since all on this forum seem to be excellent.
Reply
Old Jul 20, 2013 | 09:07 AM
  #10  
JW Motorsports's Avatar
JW Motorsports
Banned Scam/Spammer
 
Joined: Feb 2007
Posts: 50,093
Likes: 267
From: Oklahoma City
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17,'19,'22
Default

Originally Posted by Kmcoldcars
Anywhere from 4000K, which is a slightly yellowish white to 5000K, which is a very slightly blueish white is fine. 4300K bulbs put out the most light, at approximately 3100 lumens, while the 4000 and 5000K put out about 3000 lumens.
I bought 5000K 55 Watt projectors from JW with the Hi-4 harness which lets the low beam HID lights stay on when going to high beam, so all 4 lights are on.
They put out a tremendous amount of light.
I agree. We sell 6000k temps the most. 5000k is what I would suggest.

Good observation OP. Everyone wants to be in the lighting business. They're only competing by undercutting our prices. We have the most experience here out of them all. I've been selling these kits since 2008 when we first started. We custom modify these in house to make them plug n play where others make you guess. Our instruction booklet is 12 pages long. No guessing with our kits

Let me know if we can set you up.




http://forums.corvetteforum.com/c5-p...alo-rings.html
Reply
Old Jul 20, 2013 | 10:33 AM
  #11  
TheRadioFlyer's Avatar
TheRadioFlyer
Supporting Vendor
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 8,539
Likes: 886
From: Republic of Texas
Default

Here's a rough breakdown:

3000K - golden yellow (good for fog lights, rally lights or adverse weather)

4300K - Halogen Yellow (OEM color for most vehicles)

5000K - Pure White (My personal favorite and most popular, this illuminates all objects in their natural color)

6000K - Sky Blue (you loose a little visibility for the added "blue"

8000K - Iceberg Blue (more for show than anything, Not very effective on the roads especially asphalt)
Reply
Old Jul 20, 2013 | 02:50 PM
  #12  
s'noJob's Avatar
s'noJob
Melting Slicks
10 Year Member
 
Joined: Nov 2007
Posts: 3,475
Likes: 10
From: Wake Forest NC
Default

Anything over 6000K and you'll really be singing the blues.

.
Reply
Old Jul 20, 2013 | 07:17 PM
  #13  
TheRadioFlyer's Avatar
TheRadioFlyer
Supporting Vendor
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 8,539
Likes: 886
From: Republic of Texas
Default

Originally Posted by s'noJob
Anything over 6000K and you'll really be singing the blues.

.
I should also note it might induce nausea in some.
Reply
Old Jul 20, 2013 | 07:26 PM
  #14  
Z06ufgrad2002's Avatar
Z06ufgrad2002
Safety Car
20 Year Member
 
Joined: Nov 2002
Posts: 4,394
Likes: 6
From: Melbourne FL
Default

Originally Posted by bobeast
IMNHO 5k is the way to go. Higher and you start to look like a Purple Honda Boy (not to mention lower light output). Lower and it starts to trend towards yellow. 5K is a good compromise.

You can't go wrong with anything RadioFlyer sells, if you haven't settled on a vendor.
Reply

Get notified of new replies

To Headlight Kelvin Value?





All times are GMT -4. The time now is 05:28 AM.

story-0
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-1
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-2
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-3
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-4
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-5
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-6
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-7
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-8
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-9
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE