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forums.rcpitstop.com  |  In The Pits  |  Tips and Tricks  |  homemade led lights question
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Author Topic: homemade led lights question  (Read 4209 times)

Offline muddslinger

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homemade led lights question
« on: December 11, 2010, 03:58:25 PM »
hey all im bored and trying to make a set of led lights for my wagoneer.
ive blown one up when i tried powering it up with a 2s lipo so my question is
how much power do i need for leds,do i need a resistor or something?
if i can i would like to plug my lights into my reciever and run constantly.
any info would be great thanx ???
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Offline bajagord

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Re: homemade led lights question
« Reply #1 on: December 11, 2010, 04:03:37 PM »
most leds are 2.2 or 3 volt
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Offline mike m

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Re: homemade led lights question
« Reply #2 on: December 11, 2010, 04:19:38 PM »
Yup, i found that out to by hookin them up directly to a battery.  So was thinkin waht about the receiver?  but that also puts out to much, doesn't it?
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Offline buyzstuff

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Re: homemade led lights question
« Reply #3 on: December 11, 2010, 05:02:00 PM »
You can get L.E.D.s of varying input voltage and brightness and varying sizes from SMI Industrial Electronics Up the Street from Pitstop. Across the Street from Fatburger in Langley. They also have different colours. Or any other Electronics supply place. They have it all.
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Offline Sharkey

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Re: homemade led lights question
« Reply #4 on: December 11, 2010, 05:13:05 PM »
you need to hook a resistor inline to drop the voltage. the best way is to use this calculator

http://ledcalc.com/#

it explains itself and will give you what resistor to use, along with a wiring diagram. and yea, go to smi to get the supplies, i have bought lots of little stuff there, they are real great to deal with.

Offline muddslinger

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Re: homemade led lights question
« Reply #5 on: December 11, 2010, 06:01:44 PM »
awesome thanx for the info guys :D
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Offline mike m

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Re: homemade led lights question
« Reply #6 on: December 11, 2010, 10:18:46 PM »
Ya, got mine there and they are blinding super bright!
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Offline muddslinger

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Re: homemade led lights question
« Reply #7 on: December 12, 2010, 01:55:52 AM »
next time im up at rc pitstop im going to check out smi and pick up a buch of supplies.
started making a light bar for my future lights.
bye the way that led calculator is the cats ass

axial scx10
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Offline DaCoupe

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Re: homemade led lights question
« Reply #8 on: December 14, 2010, 10:00:01 AM »
next time im up at rc pitstop im going to check out smi and pick up a buch of supplies.
started making a light bar for my future lights.
bye the way that led calculator is the cats ass



I have a bunch leftover from one of my LED projects.... White, Red, Amber I can hook you up if your interested!

Offline Tee squared

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Re: homemade led lights question
« Reply #9 on: December 14, 2010, 10:38:59 PM »
Use a 330 Ohm resistor. Works perfectly for most peanut shaped LED's.
T2


Offline muddslinger

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Re: homemade led lights question
« Reply #10 on: December 15, 2010, 01:24:39 AM »
thanks for the info tee squared
axial scx10
ae b4.1 ft
ae b44  ft
miss canadiana 1959 hydroplane
tamiya cc01 bronco
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Offline muddslinger

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Re: homemade led lights question
« Reply #11 on: December 20, 2010, 01:27:46 AM »
well all your guys info payed off.so far ive got 2 front lights mounted on my bumper
and added 2 red tailights tonight.my battery went dead so ill post some pics tomrrow >:D
axial scx10
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Offline Dr.traxxas

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Re: homemade led lights question
« Reply #12 on: January 01, 2011, 10:19:55 PM »
any updates?

Offline muddslinger

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Re: homemade led lights question
« Reply #13 on: January 11, 2011, 12:58:21 AM »
so heres my lights,only 2 up front and 2 red tailights so far.
still building my light rack and ill put 4 more up there.
should be able to land a jumbo jet at night with all these lights lol

axial scx10
ae b4.1 ft
ae b44  ft
miss canadiana 1959 hydroplane
tamiya cc01 bronco
losi micro t

Offline minimonster

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Re: homemade led lights question
« Reply #14 on: August 11, 2011, 07:36:01 PM »
Hey guys,  just something to ponder.  I have hooked up 2 four and half volt LEDs in series.  Meaning, one after the other, so each one will drop 4 volts making it a total of 8 - perfect for a fully charged 2s lipo, which is about 8.5 volts.  Then I connected the power directly off the ESC side of my battery plug.  They are amazingly bright and also work as a reminder that my battery is still pluged in.   ;D
 
I also found that LEDs taken off a fashlight bought at the dollar store will work without the need of a resister.  Somehow, they seem to have a higher internal resistance, thus, not over heating and burning out due to high current draws.
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