FoC w/ Power Extender and PC 2.0

**Kyaryo Ysoyav** · 01-23-2013, 11:01 AM

I'm preparing to order a PC 2.0 sound card for my lightsaber. I'm running off a 7.4v 1600mA Li-ion battery. The FoC die is a white Rebel (off of a GGW tri-rebel). I'm planning on running it at 700mA (White seems really bright already...but would you recommend 1000ma instead?) So I need the Power extender, wire, and a 6.19 Ohm 3 W resistor? If 1000ma is recommended, which resistor would then be used? The 4.2 Ohm, 4.2 W resistor, right?

Thanks!

**Silver Serpent** · 01-23-2013, 11:34 AM

If your main blade is Green (or Green/Green) then it's already pretty bright. You're going to want that White FoC at 1000mA in order to see it shining over the main blade. http://www.thecustomsabershop.com/47...stor-P492.aspx is a good choice for your FoC resistor.

**Kyaryo Ysoyav** · 01-26-2013, 05:47 PM

How come the FOC resistors are so big? I was thinking it would be small enough to mount directly on the board. Is there a reason why I couldn't buy a much smaller resistor instead?

**Forgetful Jedi Knight** · 01-26-2013, 05:57 PM

Originally Posted by Kyaryo Ysoyav

How come the FOC resistors are so big? I was thinking it would be small enough to mount directly on the board. Is there a reason why I couldn't buy a much smaller resistor instead?

1. Because they need to be that size to do their job.

Unless you want to toy with SMD resistors.

2. Buying a "smaller resistor" would mean you would keep having to buy main LED's after you keep popping the FoC die.

As long as you attach both ends to of the resistor to the (+) wires, you don't HAVE to attach them to the PEx, you really just need the (-) wires and the control wire to be on the PEx.

Calm.. breathe... now back to work