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dustunite
08-23-2010, 09:43 PM
I'm having trouble finding the color I want and was thinking of using a rebel tri-star with 2 red and a royal blue. Has anyone tried this or am I just not looking in the right threads?

Rafalema
08-23-2010, 09:46 PM
If you want a nice purple, you should consider the new LEDengin 10 W RGBs.

Properly set-up and they are more bright than the rebels and easier to use.

dustunite
08-23-2010, 09:51 PM
Thank you

Jedi-Loreen
08-24-2010, 12:37 AM
Just one red die will overpower the blue, so you have to resistor it.

2 reds would be worse.

RevengeoftheSeth
08-24-2010, 06:51 AM
The tri-stars aren't very good, anyway. The beam is too wide and there are no good optics for it. Go for the LEDEngin 10W and customize it to get 2 or 3 blue dies and 1 red. The problem is that blue LEDs give off about half the mcd of a red and you have to make up for it otherwise.

Darth Xusia
08-24-2010, 07:02 AM
Where can you customize a 10W? Can you post or PM me a link?

FenderBender
08-24-2010, 12:56 PM
You can't unless you order 1000 pieces. Trust me, I checked. A lot.

The only LEDengin that allows you to configure multiple same color dice is the 40W RGBW, but there really isn't a good optics solution for it right now.

Tri-Rebels/Endors=suck. All the way around.

RevengeoftheSeth
08-24-2010, 07:52 PM
You can't unless you order 1000 pieces. Trust me, I checked. A lot.

The only LEDengin that allows you to configure multiple same color dice is the 40W RGBW, but there really isn't a good optics solution for it right now.


Ah, that sucks. I thought you could get them customized without doing bulk orders.

DJMoonbass
08-25-2010, 04:37 PM
you can run the red and blue off a 10 watt RGGB, or RGBA pretty easy. series will work. wire blue first as it will act as a resistor for the red. two 14500s will work.

parrallel will be better though. that way you can resistor the red better or better yet put a pot on it. get a perfect purple. this will run off 3.7 volts but if you can use a bigger battery like an 18650 to give yourself some better run time.

you can pretty much run a 10 watt almost or at full with a single 18650 if you wire all the dies in parrallel. its awesome. but be carefull on the solderpads. they do NOT like to be soldered to. its hard cuz there not pre tinned. i would suggest cleaning them before hand and use solder flux.

also the MHS heatsinks and lensholders will take minor modification to work with the 10 watts, ive found the 8.7 degree lens works the best but a 10 degree works to,.

PM me if you have any more questions.

dustunite
08-25-2010, 05:55 PM
Can the color be changed by resistors to make it a deep purple?
I want the thing to look like a black light

FenderBender
08-25-2010, 07:46 PM
If you want a black light effect, get the 10W UV. Dangerous for your eyes, but that's what it will look like. It's also wicked expensive.

No modifications to lens holders or heatsinks are neccessary to use the 10W LEDengins.

RevengeoftheSeth
08-25-2010, 09:05 PM
Just don't look directly at it if you get a UV LED. LEDs operate in the 365-395nm range, which is actually NEAR UV and not full on UV light. UV light begins in the 400+ range. Be careful with where and how much you use it. I'd only keep it around as a display item or 'show' item to bring out on rare occasions.