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View Full Version : Tri-rebel single color wiring



sparkyinbozo
11-30-2014, 07:18 PM
I'm wiring up a NB 2.0 and a tri-rebel (Rblue/green/red) with the goal of getting a purple blade. Is it as simple as just soldering the wires to the red and blue pads like I would with a single LED? I feel like it should be harder than that... Thanks!

Forgetful Jedi Knight
11-30-2014, 07:26 PM
You would need to properly resistor the LED's while you are doing your wiring.

sparkyinbozo
11-30-2014, 07:35 PM
Ahh, yeah, that makes sense. I assume you'd need to do each LED with a separate resistor and then rejoin the wires afterwards?

Forgetful Jedi Knight
11-30-2014, 07:40 PM
Ahh, yeah, that makes sense. I assume you'd need to do each LED with a separate resistor and then rejoin the wires afterwards?

Correct.

sparkyinbozo
11-30-2014, 07:43 PM
Awesomesauce, many thanks. :)

sparkyinbozo
11-30-2014, 09:02 PM
I tried my hand at calculating resistances for the first time for the royal blue and red using a 3.7V 18650 battery. I'm glad of pulling this myself, as silly as it sounds.
Final results are a .5 ohm .5 W for the blue and a 1.86 ohm .9 W for the red (would probably use like a .47 ohm/.5 watt and 2 ohm/1W resistor respectively)

Blue: R = (3.4V - 3.2 fV)/1 = .5 ohms
P = .5*1^2 = .5 W

Red: R = (3.7V - 2.4 fV)/.7 = 1.86 ohms
P = 1.86*.7^2 = .91 W