project utilizing dimmer wire

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focusedenergy

Member - Posts: 10

Joined: September 30, 2007

Location: Georgia, United States

Posted: September 30, 2007 at 6:35 PM / IP Logged

First off, here's my car:

2006 Ford Focus ZX4 SE

I've got an idea for a lighting project but I'm not exactly sure how to accomplish it. I plan on replacing my stock dome light with CCFL's. In addition I also want to wire in footwell and courtesy lighting to come on with the dome light. The stock dome light is on a dimmer controlled ground. However, my idea is to have my UV CCFL's "fade in" when the dome light fades out, and vice versa. I believe I have seen a topic on another forum stating someone who accidentally made that happen, but I could have read that wrong. So my question remains. Is there any way to have different sets of lights alternate using the dimmer controlled ground, and how would I go about it? Will a relay need to be involved in this as well? Thanks.

ice32

Copper - Posts: 116

Joined: June 12, 2007

Location: Australia

Posted: October 03, 2007 at 8:27 AM / IP Logged

i just installed some CCFL into my car that i hooked up to the dome light and switches, By the sounds of things you want the same setup i used

project utilizing dimmer wire -- posted image.

I used 12v diodes coz thats all i had lying around and they seemed to work and i switched the 12v as i used a hot 12v wire, so just in case i need to turn off the 12v i can.

I'll assume that your ground gets weaker causing it to fade, If thats not the case and its a positive wire that causes the fade effect replace the 12v wire in my picture with the dimming 12v power using the setup from this thread

If anyone wants to correct anything I've said please do so.

P.S Im not sure CCFL will fade, I'm pretty sure they just start going out

ice32

Copper - Posts: 116

Joined: June 12, 2007

Location: Australia

Posted: October 03, 2007 at 8:29 AM / IP Logged

owh and of course, if all you want is them on when the dome light comes on, ignore the switches in that pic.

P.s its more then likely the 12v that causes the dim effect.

(these forums really need a "edit" button)

the12volt

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Joined: March 07, 2002

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Posted: October 03, 2007 at 12:17 PM / IP Logged

As stated below the form: Note: Rookie members can not edit or delete their posts. Standard members may edit their posts if it is the last in the thread, and upload images....

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ice32

Copper - Posts: 116

Joined: June 12, 2007

Location: Australia

Posted: October 03, 2007 at 10:47 PM / IP Logged

yeh, just saw that, whats the post limit for standard member?

ice32

Copper - Posts: 116

Joined: June 12, 2007

Location: Australia

Posted: October 03, 2007 at 10:49 PM / IP Logged

dw, turns out if i read fine print its all there

focusedenergy

Member - Posts: 10

Joined: September 30, 2007

Location: Georgia, United States

Posted: October 11, 2007 at 2:03 AM / IP Logged

I've not tried out the project yet.... in other forums there has been posts stating fading on a CCFL transformer will damage it. I may try LED's instead.

Is this true?

fugitivealien

Member - Posts: 2

Joined: August 04, 2006

Posted: October 31, 2007 at 6:10 AM / IP Logged

I have a 2001 PT cruiser that has a fading dome light that i'd also like to wire in my underbody lighting.

I'm not concerned about the fade, just that when the dome is on the lights underneath come on. The control box has it's own seitch for the lights.

I can take the wire from the overhead light to the power of the lights, and put a diode on it's ground only, i'm not trying to get into the ground of the door system if possible. I'm also not wanting it to change the interior light's functionality and dimming.

ice32

Copper - Posts: 116

Joined: June 12, 2007

Location: Australia

Posted: November 01, 2007 at 12:25 AM / IP Logged

Hey,

Are you only after them to come on when the dome light comes on? or are you trying to have both the dome light activation and a switched method?

fugitivealien

Member - Posts: 2

Joined: August 04, 2006

Posted: November 01, 2007 at 5:18 AM / IP Logged

Yeah i'm just looking to have them come on when the dome does, however there is a switch on the control box for the lights, and might have to be taken into consideration wiring purposes.

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