Dual Color Domelight

[boredom.is.me]

Hey everyone,

This has been a long time in the making, but these have been tested to 100%. With that said, I am 100% confident in my posting of this.

How do they work? Each board consist of 16 white LED's and 24 to 30 colored LED's. (The reds are 30. The green is 24.). The colors are split into to even banks and are located on either side of the white bank.

How do you control them? One color functions normally (on, off, door) while the other comes on with door. Which color does which can be switched by simply flipping te connector or switching the pins. (It depends on what type of connector is being used.)

The green light was actually a retrofit for a friend's Jeep (97 TJ Wrangler). His is controlled a little different, but that's irrelevant to this forum.

I have to get a video for you guys and girls.





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[soundman98]

nice! what'd you use to design the circuit layout?

[boredom.is.me]

Sketchup...Google Sketchup

This is a basic layout. We ain't need no fancy computer programmy thingermejigs.

[soundman98]

ah. i've been using progecad(cheap iteration of autocad), it just makes more sense to me then the pcb programs out there..

2 pointers-- it's best to not run all 3 chips in parallel, as it can lead to uneven output, and uneven current sharing, which means possible early failure of individual led chips, which lead to a cascade failure of each series string(i know this one because some of my first projects suffered a similar demise-- took about a year or so using cree led's)

and i suggest tinning the entire copper surface, as over time the copper will oxidise. besides looking nasty, i had one board that it caused problems on by increasing resistance of some of the traces..

otherwise, if you haven't seen it before, there's a whole group of led modders around that aren't afraid of adding led's where they weren't originally..
http://www.hidplanet.com/forums/foru...y.php?13-LED-s

[boredom.is.me]

Oh boy you don't have to tell my about the cascade failure. I watched all the lights on my first board go one by one. As far as sharing goes, these aren't exactly super quality LED's but the distribution seems to be pretty good to me. Although they share the same positive, they operate on different negatives. I'm not trying to justify anything, just throwing it out there.

I never thought about oxidation. Thanks for that. The picture of the dome housing is the old light before it blew. My new one is fully tinned, but my friend's isn't, so I should fix that.

I've stumbled across there a few times, but I haven't really given hidplanet a thorough look. I'll check them out.

[SkAsphalt]

That is pretty sweet, Red for a door open light and white for a reading lamp would be pretty amazing!'

I would probably buy one of these

[boredom.is.me]

I do have one more pcb laying around.