looks like if your running the Tri Cree in parallel, then all you need is one resistor...makes sense...heres a bad ass video from TCSS: BTW if you scroll down to the comments, one person asked this for his 3.7v battery and tri cree. The response was to just wire them in parallel and only one resistor is needed for the 2 blues...the white (FoC) will not need one
Last edited by erlomd; 02-09-2016 at 11:25 AM.
Thats great! you chose wisely...lolOriginally Posted by ATDI
Well, basically each LED will require its own resistor (if wired in series...wired in parallel only requires one resistor)...it took me a while to find the right mA for them because the forward currant in the LED description was too low at 350mA...baisically each LED has a forward currant of 1000mA and if your running a 3.7v rechargeable battery...each LED will require its own 1ohm 2w resistor ( (if wired in series...wired in parallel only requires one resistor)...found here: http://www.thecustomsabershop.com/1o...ItemId=5230230
and be sure to get a star thermal pad to place the LEDs in the heatsink...I got mine here: http://www.thecustomsabershop.com/St...-pad-P483.aspx
I also have another thread on this forum regarding the same build which has pretty good responses from people here: http://forums.thecustomsabershop.com...aflex-now-what
BTW: interestingly enough (if your running a NBv3 sound board) in the instruction manual, theres a section on page 9 i think, that says that the board itself has its own forward amp level adjustment setting and can actually be adjusted to fit the need of most LED's...so essentially it has its own built in resistor...but, given the fact that resistors are so damn cheap, and amperages tend to fluctuate when battery levels drop...in order to just play it safe...its better just to cough up the extra $1 on resistors for added protection.
LEDs in series only need one resistor. But with an NB it doesn't really matter anyway because you can't run 2 LEDs in series anyway. The power supply is too low.
As for parallel, you can technically use one resistor for 2 LEDs in parallel; however, it is typically recommended to use a resistor on each LED. Their characteristics will most likely differ, which could lead to undesirable outcomes.
This may be of interest: http://electronics.stackexchange.com...-parallel-leds
I'd rather resistor all my leds than have to possibly buy a new tri cree.
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Agreed...I have 5 resistors anyway that I ordered so, why not!Thanks Darth_Chasm
So you are saying i can basically twist the 2 blues together into 1 positive and 1 negative and add only one 1ohm 2w resistor total?
It is recommended to have two separate resistors (one for each LED) if you wire the LEDs in parallel. You may get undesired results if you choose to use only one resistor.
OK, so If i add a resistor to each of the positive lines for each blue, can I the twist the 2 positives and 2 negatives into a single separate line for each?
yeah, as long as each (+) line has its own individual resistor
Stole this from count voodoo...very nice diagram btw
Last edited by erlomd; 02-09-2016 at 06:45 PM.
Wow that diagram is exactly the thing I need as a beginner. Thanks for posting that!
no problem! whatever I find useful in building my saber I'll throw it in here
Last edited by erlomd; 02-10-2016 at 07:12 AM.
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