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Replacing instrument cluster bulbs


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Texas Dodge 
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Joined: May 09, 2003
Location: United States
Posted: February 01, 2006 at 12:34 PM / IP Logged  
I plan on replacing all 11 of the instrument cluster incadescent bulbs with blue leds. Will I need to install resistors for them or can I just remove the old bulb from the plastic twist and lock base, installing the led and reinstall the base back in the cluster? The leds are 12 volts and are 18~22 ma.
Thanks for any help.
ingolf 
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Joined: January 17, 2006
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Posted: February 01, 2006 at 9:31 PM / IP Logged  
you will need a current limiting resistor.
otherwise your led's life will shorten alot.
use an led resistance calculator
blazinred99 
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Joined: January 19, 2006
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Posted: February 02, 2006 at 8:24 AM / IP Logged  

http://www.superbrightleds.com/mini-wedge.html

If your cluster uses the 194 or the 168 bulb buy some of these.  they have resistors in them already so you won't need resistors.

Texas Dodge 
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Posted: February 02, 2006 at 9:28 AM / IP Logged  
My truck has #74's in it. I am replacing them with these from discountleds.com
haemphyst 
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Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: February 02, 2006 at 10:25 AM / IP Logged  
Texas Dodge wrote:
My truck has #74's in it. I am replacing them with these from discountleds.com
You wont need current limiters... already in place with those items...
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Texas Dodge 
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Posted: February 02, 2006 at 10:38 AM / IP Logged  
Thank you very much. Good news to hear.Replacing instrument cluster bulbs -- posted image.

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