Titanium LED resistor values?

winno · Post by **winno** » Wed Jun 02, 2010 2:55 pm

Hey everyone.
My issue with getting the LED's sorted in my other thread has been resolved.
Thanks for your help.

But, now because they're white, they're insanely bright even though I went for the dimmer 1000mcd ones in the end. I mean it's really intense! It's like looking into an LED torch! At night it's hard to even see the amps and when you look away, there are three groups of three spots in my eye sight for ages.

So, I'm up for changing the little resistor now to tame things right down.

Does anyone know the values on the resistors for the 600.2, 500.4 and ZX475Ti?

Cheers.

str3atwarrior · Post by **str3atwarrior** » Wed Jun 02, 2010 3:01 pm

If you give me 10min, i'll dismount mine to check

str3atwarrior · Post by **str3atwarrior** » Wed Jun 02, 2010 3:06 pm

Mine is 160ohm 5% tolerance

dBincognito · Post by **dBincognito** » Wed Jun 02, 2010 3:20 pm

winno wrote:Hey everyone.
My issue with getting the LED's sorted in my other thread has been resolved.
Thanks for your help.

But, now because they're white, they're insanely bright even though I went for the dimmer 1000mcd ones in the end. I mean it's really intense! It's like looking into an LED torch! At night it's hard to even see the amps and when you look away, there are three groups of three spots in my eye sight for ages.

So, I'm up for changing the little resistor now to tame things right down.

Does anyone know the values on the resistors for the 600.2, 500.4 and ZX475Ti?

Cheers.

What matter's is that it has a 3.5v forward voltage. I have the part number for Ti direct replacement LED's.......they are a bit brighter.....or is that the other LED's are old and dull

I got pics of the original's vs. my replacement's.......you couldn't pick them apart.

Either way you can change the resistor on the daughter card they mount to, this controls the brightness.

The ZX amps are also a 3.5 forward voltage. I usually replace all my LED's cause I like clear lens LED's...I don't care for the older style with colored lenses to make the color of light.

str3atwarrior · Post by **str3atwarrior** » Wed Jun 02, 2010 3:22 pm

Oops my bad, not 160ohm, they are 260ohm, color code is Red, Blue, Brown and Gold

At first i saw Brown-Blue-Brown-Gold

Post by **ttocs** » Wed Jun 02, 2010 3:35 pm

rather then using a resistor, you could just take some fine grit sandpapar(600-800) and rugh up the led to give the plastic a faded or rough appearance that would capture more of the light rather then just throwing it out.

str3atwarrior · Post by **str3atwarrior** » Wed Jun 02, 2010 3:37 pm

ttocs wrote:rather then using a resistor, you could just take some fine grit sandpapar(600-800) and rugh up the led to give the plastic a faded or rough appearance that would capture more of the light rather then just throwing it out.

Haha that's so guetto i might try it one day!

Post by **ttocs** » Wed Jun 02, 2010 3:41 pm

its not ghetto, it is one of the ways they control the output. I did it last year on a 2 color red/blue led so that when I lit both red and blue up, it looked purple just like the leds on the RDDP output that monitors the thermal protectoin mode. Only took 2 mins and just gave the clear plastic more of a faded look and collected the light.

If you have one of the blue ones left over that works try it out and see how much light it cuts down.

str3atwarrior · Post by **str3atwarrior** » Wed Jun 02, 2010 3:43 pm

I have some spare leds, but i'm out of sandpaper right now, i'll surely try it when i'll buy some to finish my box!

dBincognito · Post by **dBincognito** » Wed Jun 02, 2010 3:47 pm

I will dig out the direct replacement part number for the Ti LED's. Everyone always asks when I don't have my external hard drive hooked up.....that's where all my receipts for this kind of stuff is.

winno · Post by **winno** » Wed Jun 02, 2010 5:42 pm

str3atwarrior wrote:Oops my bad, not 160ohm, they are 260ohm, color code is Red, Blue, Brown and Gold

At first i saw Brown-Blue-Brown-Gold

Thanks mate. Very kind of you to do that. It was the value for the single small resistor mounted in series to the LED's on the little LED daughter board I was after.

I'll source some higher value ones and sub them in to tame it all.

The old blue ones were very bright but by the nature of blue light, they do not appear as bright as white light does because of how the eye registers the different wavelengths.

The 1000mcd white bulbs are in so bright, my whole boot and roof in the cabin is lit right up.

And to think I was gunning for the 5000mcd ones first...

eulogious · Post by **eulogious** » Thu Jun 03, 2010 12:57 am

dBincognito wrote:I will dig out the direct replacement part number for the Ti LED's. Everyone always asks when I don't have my external hard drive hooked up.....that's where all my receipts for this kind of stuff is.

I believe I gave him the part number for digikey in his other post, so you don't have to go digging for them

If not, I got it handy...

winno · Post by **winno** » Thu Jun 03, 2010 1:25 am

Cheers guys.
The LED's are sorted, done, finished.

This thread is about resistors.

eulogious · Post by **eulogious** » Thu Jun 03, 2010 2:41 am

winno wrote:Cheers guys.
The LED's are sorted, done, finished.

This thread is about resistors.

That's what I thought, I just didn't want him digging around for stuff that wasn't needed

Just experiment with different values of resistance. Start with a high resistance and start working back. You can't really hurt anything at this point... If you do, just fix it!

winno · Post by **winno** » Thu Jun 03, 2010 2:49 am

Cheers.
I was going to start at double the value and go from there.

This forum is amazing. So much help and support for such great gear.

Unique

eulogious · Post by **eulogious** » Thu Jun 03, 2010 2:57 am

Tell me about it! I came on here with a broken tantrum 600.4, and now not only is it fixed, it's installed and I got some awesome used gear for cheap to boot! I love this phorum!!

Doubling the resistance sounds like a good place to start to me! Let us know what you come up with, I might want to swap out the LEDs at some point, and knowing what to expect would really help.

str3atwarrior · Post by **str3atwarrior** » Thu Jun 03, 2010 3:52 am

Let me know how it worked out! And yep, 260ohm is the small resistance next to the leds on the small board, at least it is on my ZX475Ti

valeks1 · Post by **valeks1** » Fri Jun 04, 2010 11:34 pm

100 Ohm

winno · Post by **winno** » Sun Jun 06, 2010 2:18 am

I've done two things today that means I will not be playing with resistors for the time being;

1. The brightest amp was the 600.2 right at the back of the car. The LED's on this amp actually sat quite proud of the amp cover and so offered a much wider angle of radiance.

Tonight I pulled the amp out and remounted the LED's on this amp so that they barely poke through the top of the amp.

The result - much better!
It's now the same as the other two amps.

2. The day was also spent finishing the top of the false floor. Carpet was glued down and the perforated stainless steel panels screwed into place from underneath.

The result - even better again.

The panels actually serve to diffuse the light.

So, very happy.

Pics?

Follow my build thread.

Post by **ttocs** » Sun Jun 06, 2010 5:49 am

pics or ban!

dBincognito · Post by **dBincognito** » Sat Jun 12, 2010 9:16 am

There is no need to change any resistors when these are used as replacements. Sorry for the delay on my part.

http://search.digikey.com/scripts/DkSea ... ND&x=0&y=0

Pics of originals vs. replacements

I've used them several times now with no problems.

Titanium LED resistor values?

Titanium LED resistor values?

Re: Titanium LED resistor values?