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Thread: Brightness difference 1 dice(single), 2 die(dual), 3 die (trie) on a tri cree

  1. #1

    Default Brightness difference 1 die(single), 2 dice(dual), 3 dice (tri) on a tri cree

    Can anyone estimate the brightness difference between using a single, dual, and tri cree full powah setup? Lets say they are all BBB.
    I noticed you can really tell a difference between 1 die and 2 die.
    Using a lux meter app on my phone I got the following results
    The brightness for the single die got up to 1600
    The brightness for the dual dice got up to 3800 and you can tell it is definitely brighter.
    I put the phone's light sensor near the blade closest to the LED.
    The difference between 1 and 2 die is definitely dramatic. I would say at least twice as bright according to my lux meter and eyes.
    Is the difference between 2 and 3 die as dramatic? Can you tell a big difference between using 2 die and 3 die?
    Last edited by blur; 08-17-2016 at 03:41 PM.

  2. #2

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    Going from 1 to 2 dice is more dramatic than going from 2 to 3. That being said, 3 dice is still a noticeable jump from 2.

    Keep in mind that each extra LED will drain your battery that much faster. At some point, you gotta decide if you want an even brighter blade, or a longer runtime.
    We all have to start somewhere. The journey is all the more impressive by our humble beginnings.

    http://led.linear1.org/1led.wiz for the lazy man's resistor calculator!
    http://forums.thecustomsabershop.com...e-to-Ohm-s-Law for getting resistor values the right way!

  3. #3

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    Does light work that way: 1600 lumens from each die, so 3200 from two dice, 4800 from three dice?
    If so, two is twice as bright as one, and three is 1.5x as bright as two, four is 1.33x as three etc. Diminishing returns (and mAh).

  4. #4

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    It also depends on how you are driving your LED. If your board cannot output the power for 3 dice, then your decision is made for you. There are ways around that, but, as SilentSerpent said, your battery life will take a hit. (also dice is the plural of die)

  5. #5

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    Quote Originally Posted by Mineral View Post
    Does light work that way: 1600 lumens from each die, so 3200 from two dice, 4800 from three dice?
    If so, two is twice as bright as one, and three is 1.5x as bright as two, four is 1.33x as three etc. Diminishing returns (and mAh).
    For napkin math, it works that way. In practice, it's not quite as good. As FJK is so fond of saying: "More is not always better." The sweet spot for saber brightness is typically 2 dice plus one for FoC, or all 3 in a Full Powah setup (if you don't mind eating up batteries.)
    We all have to start somewhere. The journey is all the more impressive by our humble beginnings.

    http://led.linear1.org/1led.wiz for the lazy man's resistor calculator!
    http://forums.thecustomsabershop.com...e-to-Ohm-s-Law for getting resistor values the right way!

  6. #6

    Default

    Quote Originally Posted by blur View Post
    Can anyone estimate the brightness difference between using a single, dual, and tri cree full powah setup? Lets say they are all BBB...
    Bright.
    Brighter.
    Even brighter.

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