• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

instrument lights - what voltage do they run at?

  • Thread starter Thread starter enferno
  • Start date Start date Sep 1, 2006

enferno

Member
Jun 20, 2006
418
2
16
Sep 1, 2006
#1
  • Sep 1, 2006
  • #1
title says it all.

i have a 66 coupe. i'm considering converting from those dinky POS instrument lights and rigging some LED's in their place, possibly placing 2 per gauge. Benifits of this would be much brighter, less heat, and lasts a lot longer than conventional bulbs.


i need to know what voltage the instrument bulbs run at so i can determine what rating of LED's i need to buy etc.


thanks in advance!
 
T

TyMeFlAmE

New Member
Feb 16, 2006
5
0
0
Sep 1, 2006
#2
  • Sep 1, 2006
  • #2
Beat me to it

I've been thinking about doing just that for the past week
 

enferno

Member
Jun 20, 2006
418
2
16
Sep 2, 2006
#3
  • Sep 2, 2006
  • #3
TyMeFlAmE said:
I've been thinking about doing just that for the past week
Click to expand...


well perhaps we could brainstorm on how to do this then.

my car is gutted as it it going to the paintshop on tuesday, so i can't test and see what voltage the instrument lights get.


if someone can just run out with a voltmeter and let me know, i can draw up some schematics and list what kind of LED's & resistors etc. are needed, as well as make a tutorial if what i have planned is successful.
 

iskwezm

10 Year Member
May 24, 2005
4,159
20
79
Rowland Heights,California
Sep 2, 2006
#4
  • Sep 2, 2006
  • #4
just buy the L.E.D.'s that have the same bulb housing. I bought some and they have 4 or 5 L.E.D.'s on one bulb and cost about 5 bux each and come in about 6 colors.i'll look for the comapny i got them from.
 

LUCAFU1

Founding Member
Apr 19, 2001
496
0
16
Tucson
Sep 2, 2006
#5
  • Sep 2, 2006
  • #5
super led lights dot com or something like that. has everything
 

67Dylan

New Member
May 11, 2006
259
0
0
Phoenix, AZ
Sep 2, 2006
#6
  • Sep 2, 2006
  • #6
The lights run on 12v's. But why build something when the bulbs, as pointed out, cost only a few bucks? I like projects too, but if you buy the bulbs you won't have to cut any wires, it's a quick change, and you're on to another project
 

iskwezm

10 Year Member
May 24, 2005
4,159
20
79
Rowland Heights,California
Sep 2, 2006
#7
  • Sep 2, 2006
  • #7
here you go
http://www.whitegauges.net/products_list.php?catID=4550

your welcome!

and they are A LOT brighter then stock
 
6

66HertzClone

New Member
Aug 24, 2004
428
0
0
Central New Jersey
Sep 2, 2006
#8
  • Sep 2, 2006
  • #8
One problem you are going to find is the LED's are directional, light out the front of the LED, not much to the sides.
 

LUCAFU1

Founding Member
Apr 19, 2001
496
0
16
Tucson
Sep 2, 2006
#9
  • Sep 2, 2006
  • #9
66HertzClone said:
One problem you are going to find is the LED's are directional, light out the front of the LED, not much to the sides.
Click to expand...

they sell leds with 6 bulbs for one plug so it gets really bright
 
6

66HertzClone

New Member
Aug 24, 2004
428
0
0
Central New Jersey
Sep 2, 2006
#10
  • Sep 2, 2006
  • #10
LUCAFU1 said:
they sell leds with 6 bulbs for one plug so it gets really bright
Click to expand...

No doubt, except the light is like that from a flashlight, one direction. I am not trying to say this won't work, just trying to point out that this is not going to be as easy as it seems. If it was, don't you think others would have already done it?
 

iskwezm

10 Year Member
May 24, 2005
4,159
20
79
Rowland Heights,California
Sep 2, 2006
#11
  • Sep 2, 2006
  • #11
66HertzClone said:
No doubt, except the light is like that from a flashlight, one direction. I am not trying to say this won't work, just trying to point out that this is not going to be as easy as it seems. If it was, don't you think others would have already done it?
Click to expand...
im assuming you HAVEN'T done it,so you dont know, but i HAVE done it it works just fine for me,maybe a little even better then the 40 year old bulbs that were in there
 

Max Power

Active Member
Jul 31, 2003
1,774
1
36
St Paul
Sep 2, 2006
#12
  • Sep 2, 2006
  • #12
Instead of the 3 watt 194s, you could get the 5 watt 2825s?
 

65ShelbyClone

Founding Member
Sep 9, 2000
4,675
38
119
Antelope Valley, SoCal
Sep 3, 2006
#13
  • Sep 3, 2006
  • #13
66HertzClone said:
One problem you are going to find is the LED's are directional, light out the front of the LED, not much to the sides.
Click to expand...

There are two solutions I can think of. Either get LEDs with the widest viewing angle possible(which will knock down the mcd rating, unfortunately) or make one "frosted" with a little 600 grit paper.

You can also punch out the glass from old bulbs and replace it with an LED and resistor. That way there is no hardware modification and it is totally reversible. I don't know how well they work with a dimmer, though. My highway driving usually happens at night and I often have the instrument lights darn near turned off.

Edit: W00T! 3000 posts!
 
You must log in or register to reply here.

Similar threads

A
95 GT parking brake instrument cluster light trouble
  • Aroenias
  • Jun 23, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
1
Views
236
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 24, 2025
Mustang5L5
What's your tow rig?
  • LILCBRA
  • May 31, 2026
  • Other Auto Tech
Replies
3
Views
127
Other Auto Tech May 31, 2026
LILCBRA
Next Generation LED Technology - Meet the SL2 Pro LED Bulb | Diode Dynamics
  • Diode Dynamics
  • Mar 22, 2024
  • Vendor Sponsor Forums
Replies
1
Views
826
Vendor Sponsor Forums Apr 11, 2024
Diode Dynamics
X
Free VE Table Corrections — Drop Your MSQ and a Datalog, I'll Do the Rest
  • X-cam34
  • Apr 12, 2026
  • Digital Self-tuning Forum
Replies
16
Views
583
Digital Self-tuning Forum Jul 7, 2026
X-cam34
X
D
Double check my electrical diagnosis of light issues on 65 Coupe
  • Duke City Novice
  • Jan 21, 2024
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
1
Views
825
1965 - 1973 Classic Mustangs -General/Talk- Feb 4, 2024
AeroCoupe
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?