LED's again. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Everything Electrical & Electronic Have an electrical problem? Lighting, Alternators, gauges, DIC, HUD, etc? Post it here. Please post Audio problems in the Audio forum, and Engine control problems in the appropriate Mechanical forum for your year.

Reply
 
 
 
Thread Tools Search this Thread
Old 02-25-2004, 01:51 AM   #1
Senior Member
Certified Car Nut
Thread Starter
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default LED'* again.

If i wanted to run 8 LED'* off of my cig lighter would i just wire up 4 in parallel in two sets? Or should i slap on a resistor. I got some 2.2k ohm resistors just incase. These will be run off a switch in me and Bonnie94sse'* cars....

As of now it'* 8 LEDs in each car, and possibly 2 more later on.
BonneMeMN is offline   Reply With Quote
Old 02-25-2004, 07:01 PM   #2
Senior Member
True Car Nut
 
Join Date: Nov 2002
Location: Texarkana, Texas
Posts: 6,041
Thanks: 0
Thanked 0 Times in 0 Posts
Damemorder is on a distinguished road
Default

Use a resistor, You don't want to have to take apart whatever you built to change a bulb. What'* the voltage of the LED?
Damemorder is offline   Reply With Quote
Old 02-25-2004, 07:27 PM   #3
Senior Member
Posts like a Camaro
 
Join Date: Aug 2003
Location: Cleveland, Ohio
Posts: 1,177
Thanks: 0
Thanked 0 Times in 0 Posts
97NAbonneville1 is on a distinguished road
Default

What is it for?>
97NAbonneville1 is offline   Reply With Quote
Old 02-25-2004, 07:40 PM   #4
Senior Member
Certified Car Nut
Thread Starter
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

Can't say what it'* for. An electrical engineer on my floor said that the 2.2k ohm resistors i bought is right, but they are only 1/4 watt, he said using two 1k ohm resistors that are 1/4 watt equalling 1/2 watt would be better...
BonneMeMN is offline   Reply With Quote
Old 02-25-2004, 07:49 PM   #5
Senior Member
Posts like a Camaro
 
Join Date: Aug 2003
Location: Cleveland, Ohio
Posts: 1,177
Thanks: 0
Thanked 0 Times in 0 Posts
97NAbonneville1 is on a distinguished road
Default

If this is about what I had posted earlier (like months ago)... I'm going to set it off up in heeere
97NAbonneville1 is offline   Reply With Quote
Old 02-25-2004, 08:15 PM   #6
Senior Member
Certified Car Nut
Thread Starter
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

No i don't know what you posted before. It'* inside the car, running off the cig lighter. This is something that only a few people here have heard about at all, let alone seen.
BonneMeMN is offline   Reply With Quote
Old 02-26-2004, 06:40 PM   #7
Senior Member
True Car Nut
 
Join Date: Oct 2002
Location: Groton, CT _NEBF 05, 06, 07_
Posts: 2,703
Thanks: 0
Thanked 0 Times in 0 Posts
markwb is on a distinguished road
Default

Quote:
Originally Posted by BonneMeMN
Can't say what it'* for. An electrical engineer on my floor said that the 2.2k ohm resistors i bought is right, but they are only 1/4 watt, he said using two 1k ohm resistors that are 1/4 watt equalling 1/2 watt would be better...
Sounds like current limiters, and/or voltage drops, not sure. Two 1 k ohm 1/4 watt resistors in series will dissipate heat more efficiently than the 2k ohm 1/4 watt resistor by itself. That appears to be the rational there.
markwb is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Brake pedal low again and again and again NMP1 GMC/Chevrolet Truck/SUV 2 07-17-2015 11:56 AM
Test Drive it! Again & Again........ AD Bear Lounge 4 04-14-2005 01:13 PM
Help again and again pgault 1992-1999 8 03-15-2004 02:45 PM
94 Bonneville with the SES light on again off again... JasoNeon 1992-1999 5 12-30-2003 10:05 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 05:57 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.