Nissan 370Z Forum

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-   -   DIY: Interior LED Color Change (http://www.the370z.com/diy-section-do-yourself/8520-diy-interior-led-color-change.html)

HaHaNdN 04-10-2013 05:32 AM

Digi, I think that is some sick *** stuff you pulled off, wow. I'm seriously amazed, I can do mechanical, but electrical other than simple switch out is beyond me. Props!!! :bowrofl:

DIGItonium 04-11-2013 12:42 AM

Quote:

Originally Posted by HaHaNdN (Post 2259984)
Digi, I think that is some sick *** stuff you pulled off, wow. I'm seriously amazed, I can do mechanical, but electrical other than simple switch out is beyond me. Props!!! :bowrofl:

Haha thanks! We should work together since I'm not so great with the mechanical stuff. My drilling and cutting is sloppy, but I can run wires, build up circuits, and solder stuff easily.

For example, my headlight mods need repair and taking the headlights apart is a bit daunting. I can take other things apart... just not the headlights lol.

NickShoelace 08-23-2013 11:36 PM

I need to find a local custom shop that'll do all of this for me because God knows I couldn't pull this off on my own! I want it though!

Smartace3 09-26-2013 08:38 PM

I was planning on using a 3-Up Cree Star LED with a Bucktoot to make some dome lights but I wasn't sure how it would work out with the auto dimming feature. How has it been working out for you??

DIGItonium 09-26-2013 10:02 PM

You need to use current limiting resistors because the BuckToot tries to regulate until it decides to shut off completely. I also recommend a single LED for each map light because it will be wicked bright. I've blinded my passengers with just the K2 LEDs, and that's old technology by today's standards.

Elan 09-27-2013 12:10 AM

Quote:

Originally Posted by Smartace3 (Post 2506616)
I was planning on using a 3-Up Cree Star LED with a Bucktoot to make some dome lights but I wasn't sure how it would work out with the auto dimming feature. How has it been working out for you??

I use JW's license plate bulbs deal for mine. I prefer it a little brighter than what I had before (and quality is MUCH better). Now when I turn on my domes, let there be light!

He is a vendor here and sells two for $15 and free shipping with a 30 day warranty. That's important because I had two bulbs from superbrighleds that just did not work at all even when changing polarity. The ones that did flickered like a mother.

Smartace3 09-27-2013 01:22 AM

Quote:

Originally Posted by DIGItonium (Post 2506702)
You need to use current limiting resistors because the BuckToot tries to regulate until it decides to shut off completely.

Im gonna take your advice, so I found a 1 up star led to use. Here are the specs for it,
1-Up Cool-White Cree XT-E Star LED Features:
130 lm @ 350mA
231 lm @ 700mA
1500mA - Max Drive Current
2.85Vf - Typ. Forward Voltage @ 350mA
6500K - Color Temperature
My question now is where can I find current limiting resistors? I searched all over and found metal film, carbon film, wire wound ect.. Are they the same??
Would something like this work? RW67V330B12 Vishay / Dale | Mouser
Thanks in advance.

DIGItonium 09-28-2013 01:40 AM

Current limiting resistors is just that - resistors. I recommend running the LED no greater than 200mA. Make sure you have a decent heat sink or something with decent surface area to dissipate some heat. If you leave it on long enough it will get pretty warm.

To get resistor value for the LED use Ohm's Law:
R = Volts / Current. Here you need to factor in the maximum supply voltage and voltage drop of the LED, and the current flow (350mA in this example).

R = (14.4 - 2.85) / 0.350 = 33 ohm. This is the minimum resistor value to use. Next you need to calculate the resistor wattage because it will generate heat as it limits the current flowing through the LED:
P = Current * Resistance = 0.350 * 33 = 11.5 Watts.

As you can see here, the resistor will dissipate almost 12W. It is very inefficient.

Quite honestly I rather run the BuckToot driver at 350mA and sacrifice the dimming feature. If you want to play it safe the most feasible starting point is with a single 100 ohm 1W resistor. That will run the LED around 100mA. It doesn't sound like much, but you won't melt things and retain dimming feature.

Smashley 09-28-2013 03:37 AM

Quote:

Originally Posted by 370z1 (Post 953609)
Added some pics of a single SMT red LED i added next to the stock orange ambient interior led. I just tied the led to the existing +12 & GND with a potentiometer which acts as a dimmer. It illuminates the center console area and can be turned off if needed. I picked up some plastic snap plugs at NAPA auto parts then drilled a hole in the center. This is the rubber piece covering the hole in the center.

Plz add a write up

Smartace3 09-28-2013 11:40 AM

Quote:

Originally Posted by DIGItonium (Post 2508088)
Quite honestly I rather run the BuckToot driver at 350mA and sacrifice the dimming feature.

What do you mean by sacrificing the dimming feature? Does the dimming feature not work with the BuckToot driver?? I don't really care much for the dimming feature. Do you or anyone here know how to disable the dimming feature so that I can straight up just use something like the BuckToot driver or a resistor to run the led without worrying about the voltage differences caused by the Fade-off feature??

DIGItonium 09-29-2013 12:37 AM

Dimming feature pretty much gradually drops the voltage. The BuckToot operates in a wide range of voltages, so it will do it's best as a regulator to maintain a consistent output until voltage drops too low and shut off. So it is not an issue if you don't care about losing the gradual dimming.

Smartace3 09-29-2013 05:44 PM

Nice! Thanks DIGI. Now i can place my order and do my led swap!!

JayZ1 11-18-2013 04:47 PM

Wow y'all are buggin out with the lights!
Holy crap...nice job though!

Like_a_boss 03-17-2014 02:03 AM

THIS IS AWESOME! I have hated the annoying orange interior lights since I bought my Z. Great write up, Does anyone know of anyone that does this service or any good shops in Colorado that might be able to do this mod for me?

Indiana102 10-16-2014 07:58 PM

Thanks for posting this DIY. I started working on changing everything out and thought I'd post a picture of the start switch done. Blue and green FTW! :D http://img.tapatalk.com/d/14/10/17/sedy5ege.jpg


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