View Full Version : 6 Volts Lights.


Stone17
12-07-2010, 09:06 PM
Got all the LED Lights all set up in the trunk and I found out stock light is 6volt. Really.

Does any know of a 6 volts to 12 volts converter?

TriGuy
12-08-2010, 07:24 AM
so you installed 12v lights but the power source is 6v?

AAIIIC
12-08-2010, 12:04 PM
You sure about that? :confused: It's supposed to be a 211-2 bulb, which is a 12V. Maybe a previous owner put the wrong thing in?

Stone17
12-08-2010, 12:40 PM
You sure about that? :confused: It's supposed to be a 211-2 bulb, which is a 12V. Maybe a previous owner put the wrong thing in?

I took the trunk light out and tested it on my voltmeter and got 6 volts.
Plug my LEDs light in and nothing.

Anyone has an ideal?

Stone17
12-08-2010, 12:44 PM
so you installed 12v lights but the power source is 6v?

Yes sir.

All my last car has 12volts light so I was thinking this car would too.

TriGuy
12-08-2010, 12:50 PM
You trunk light should be 12V. The replacement incandescent bulb is a Syvania 12V. If you change to LED then there should be change in voltage. It will just be a less wattage draw for the LED bulb. Have you tried hooking the volt meter up to the leads on the trunk? There is no step-down transformer that is installed in the car.

TriGuy
12-08-2010, 12:55 PM
Yes sir.

All my last car has 12volts light so I was think this car would too.

It should be. If you are only reading 6V at the source side of the circuit in the trunk, there has to be another problem somewhere in the wiring.

punishmentcycle
12-08-2010, 12:57 PM
flip the led around.. LED's are polarity sensitive..

TriGuy
12-08-2010, 01:07 PM
it could be the polarity when you plugged it in like punishmentcycle said, but what gets me is the voltage on the old bulb.

Here is a link to a direct replacement LED to the incandescent. Factory bulb is a 211...
http://www.superbrightleds.com/cgi-bin/store/index.cgi?action=DispPage&Page2Disp=%2Fspecs%2Ffestoon_4410-x9.htm
In the link above they will operate in a range but the lower the voltage the less lumens it will produce.

Stone17
12-08-2010, 01:22 PM
flip the led around.. LED's are polarity sensitive..

I have a 12 Volt power supply I use to test everything with.
Plug the LEDs lights into the test power supply and bam the LED lights came one.

Can one of you guys run out and get a voltmeter on the trunk light?

TriGuy
12-08-2010, 01:33 PM
I am at work so I can't at the current moment. You should be able to take your voltmeter to where the actual bulb plugs in and measure the voltage. How were you measuring voltage across the removed bulb if it was not plugged in?

If you are not getting atleast 12V across the leads located in the trunk then you either have a bad ground somewhere or a previous owner put some type of in-line resistor in there somewhere.

Stone17
12-08-2010, 01:50 PM
I am at work so I can't at the current moment. You should be able to take your voltmeter to where the actual bulb plugs in and measure the voltage. How were you measuring voltage across the removed bulb if it was not plugged in?

If you are not getting atleast 12V across the leads located in the trunk then you either have a bad ground somewhere or a previous owner put some type of in-line resistor in there somewhere.

I removed the old light housing and cut the plug. Striped the wire and plug my voltmeter into the bare wire.

When I get home I'm going to test the interior lights and see what I come up with.

renzos23
12-08-2010, 02:00 PM
I've always wondered about that. Actually when I did the interior swap the trunk was the last one I did. It didn't work but I was aggrevated by then so I left it alone when it didn't work for me.

Stone17
12-08-2010, 05:37 PM
Just tested the inside light and there are 12 volts.
I'm going to wire in a relay kit to 12 volts and have the 6 volts trip the relay.

TriGuy
12-08-2010, 08:13 PM
I would still look into the situation as to why the trunk light is only showing 6V....there might be some underlying reason that needs to be addressed.

Stone17
12-09-2010, 07:00 AM
I would still look into the situation as to why the trunk light is only showing 6V....there might be some underlying reason that needs to be addressed.

I guess GM does not want the car to burn down with the HOT light. When I pulled my trunk light housing down it was melted.

TriGuy
12-09-2010, 07:14 AM
I guess GM does not want the car to burn down with the HOT light. When I pulled my trunk light housing down it was melted.

That is not the voltage causing that. That means too much power was in the housing meaning to large wattage bulb was put in. That creates resistance which will create heat. A 6V bulb can still melt the housing if the current resistance in the bulb is high enough.

There still to me seems to be something else going on in there, especially if you say the housing was melted.

aurora40
12-09-2010, 07:47 AM
I guess GM does not want the car to burn down with the HOT light. When I pulled my trunk light housing down it was melted.

That happened on our Buick. The replacement bulbs are all slightly larger in size than the OEM one was. So the bulb is too close to the plastic housing, which melts away some. It may be the wrong bulb was used in your car, or that some brand of it is slightly larger than the old one was. In 225k miles it has not caused any real problem, nor burned the car down.

It's hard to imagine GM stepping down the voltage, simply because that would cost money.

vetteboy2k
12-09-2010, 11:13 AM
I betting bad ground

Stone17
12-09-2010, 01:15 PM
I betting bad ground

Can you go out to your car and test it with a voltmeter?
I want to see what Voltage your trunk light is.

Stone17
12-09-2010, 08:42 PM
Weird.
Now I'm getting 12volt from the trunk light.

Still not down hiding the wire.
There is 7 LED pod with 3 LED in each pod.

http://i2.photobucket.com/albums/y14/Stone17_2/WP_000175.jpg

http://i2.photobucket.com/albums/y14/Stone17_2/WP_000177.jpg

TriGuy
12-10-2010, 07:26 AM
Weird.
Now I'm getting 12volt from the trunk light.

Still not down hiding the wire.
There is 7 LED pod with 3 LED in each pod.

http://i2.photobucket.com/albums/y14/Stone17_2/WP_000175.jpg

http://i2.photobucket.com/albums/y14/Stone17_2/WP_000177.jpg

If you are now getting 12V reading, then I will guarantee that there is a bad ground somewhere in that system. If the ground wire is not making a solid connection then your voltage reading will be all over the place.

Outside of that, looks like you can perform surgery in that truck with all that light.:cool::D

Stone17
12-10-2010, 10:34 AM
If you are now getting 12V reading, then I will guarantee that there is a bad ground somewhere in that system. If the ground wire is not making a solid connection then your voltage reading will be all over the place.

Outside of that, looks like you can perform surgery in that truck with all that light.:cool::D

I love the lights.
It is so bright now.

vetteboy2k
12-10-2010, 01:44 PM
Where did you get those lights for the trunk. Pretty cool

Stone17
12-10-2010, 06:09 PM
Where did you get those lights for the trunk. Pretty cool

There a place in Houston Called Electronic Parts Outlet (EPO).
They sell the LED pods for $4 each.Colors are white, blue and red.
Just add some more wire to make it longer and it has 3M tape on the back.

This is from my 94 Lincoln Mark VIII.

http://i2.photobucket.com/albums/y14/Stone17_2/100_0344.jpg

http://i2.photobucket.com/albums/y14/Stone17_2/100_0349.jpg

This went into the Door lights.

http://i2.photobucket.com/albums/y14/Stone17_2/flexible_round.jpg

http://i2.photobucket.com/albums/y14/Stone17_2/100_0597.jpg

bamacaddy
12-10-2010, 08:06 PM
That's super cheap on these.....I guess they last "forever"? They look GREAT. Nice addition

Stone17
12-12-2010, 05:52 PM
That's super cheap on these.....I guess they last "forever"? They look GREAT. Nice addition

I never had any problem with the LED Pod on my other car.

The light work or they dont work.
I'm guess there is a module for the trunk light that drops the volts down to 6volts.

Going to install a relay kit this week.