So I put LED reverse lights in and wanted to put some in the License plate lights as well, so I did. Well they worked for all of 10 seconds. I tested the amount of power I am getting back to them and its a solid 12v which seems a little high all the way back there. Anyway I was thinking about putting some resistors on to insure I do not blow another set. My question to you all is what size or type of resistor do I get and exactly how should it be installed (i know solder but across 2 wires, in line on 1 wire...what?) electrical is never been my favorite thing so I appreciate the help.
Resistors
- Thread starter L_King
- Start date
joegr
Dedicated LVC Member
Are you using LED lights that just plug into the light bulb connector? If so, they should already have the correct current limit resistors built in. Normally, you should expect to get 12 to 14 volts at the bulb socket, so 12 is definitely not high.
If you are just using plain LEDs (not bulb replacement assemblies) then the resistor size will depend on the LED voltage (usually a little less than four volts) and the LED current (varies greatly with the LED used). Example, a 3.8V LED at 50mA would need a 200 ohm, 3/4 W resistor.
If you are just using plain LEDs (not bulb replacement assemblies) then the resistor size will depend on the LED voltage (usually a little less than four volts) and the LED current (varies greatly with the LED used). Example, a 3.8V LED at 50mA would need a 200 ohm, 3/4 W resistor.
I am using these: third section down.
http://www.superbrightleds.com/cgi-...tion=DispPage&Page2Disp=/mini-wedge.html#wled
It was just weird. I plugged one in tested it and it worked. Then I locked it in to the lense housing tested again, no good. Second bulb same story.
If it was one bulb I'd say it was just bad but 2? So I'm not sure exactly where to go next to make sure indont blow them again
http://www.superbrightleds.com/cgi-...tion=DispPage&Page2Disp=/mini-wedge.html#wled
It was just weird. I plugged one in tested it and it worked. Then I locked it in to the lense housing tested again, no good. Second bulb same story.
If it was one bulb I'd say it was just bad but 2? So I'm not sure exactly where to go next to make sure indont blow them again
joegr
Dedicated LVC Member
Did you try removing them, rotating 180 degrees, and reinstalling them?
Light bulbs don't care about polarity, so light bulb connectors are polarized. However, most replacement LED bulbs do care. They will work perfectly installed one way, and not at all installed the other way.
1LoudLS
Dedicated LVC Member
also check to make sure that the bulb terminals are making good contact, when i first put my superbrightled's in a couple of them kinda flickered on and off and i had to adjust the terms at the bulb base just a little.
chris2523
93 Mark VIII
+1
