Jas-Ot wrote:
I was going to do a R/pR/G Tri Cree from LED supply. Get a little mix of the two reds in there.
Do the reds need different resistors or can I run them in parallel off the same resistor?
All three flavors of red have similar voltages, so resistor sharing is indeed possible. That said, putting each diode on its own resistor is a nice precaution so that if a solder connection comes loose, you're not pumping 2A into a single LED.
How is their Dynamic Heatsink? I think I saw you used one in a different build, just curious how they stack up against the TCSS sinks? I can't imagine they perform much differently given the relatively low wattage, although Copper is a superior thermal capacitor VS Aluminum and the LedSupply looks to be all aluminum. I was thinking more along the lines of ease of use.
Without a fan to provide constant cool air, copper won't perform much better than aluminum. The LED Supply heatsink could be advantageous in a PVC build by providing more metal to absorb heat.
I used one fullsize in my Kylo build for a 3A tri-cree red. Between the extra metal, the thick PVC walls, and only leaving the saber on for short bursts, the saber handles the heat well, but I normally wouldn't pump more than 1A into a PVC hilt's LED.
I used one with the mounting threads cut off in my Kota build just because TCSS was out of stock at the time. For an aluminum saber, the entire hilt draws heat away, so no heatsink should be more advantageous than another.
As for ease of use, LED Supply stars and sinks need some modification in this setup. The center holes are too small for six wires, so I always drill the centers out with a 3/16" bit. It's easier to use a saber-specific heatsink with six perimeter holes - though I've never tried to secure a Tri-cree in a SF heatsink. I'm not sure if the unit would tighten enough to secure the short lens - I've found the US sinks to fail in this regard without a spacer.