LED Par Cans, will it work ??

Discussion in 'Lighting' started by Singularity, 7 Nov 2011.

  1. Singularity

    Singularity Hmmm amper!

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    I have some experience with these type of lights, and they are relatively bright, but the big thing is that their prices have really dropped lately and they are fully controlable when it comes to color and brightness.
    Can some of the lighting guru`s check if they can find out what lumens per watt and what have you these fittings have ?

    was thinking of 3x led par cans and one simple club light controller, which you will use to control color temp and brightness... that will work out to about R7k for a led lighting system which is fully controlable.

    http://www.audiowarehouse.co.za/pro...p-179?osCsid=3a1a52027a04eaf48a888052d7b78057
    [​IMG]
     
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  3. Singularity

    Singularity Thread Starter Hmmm amper!

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    oh and they can strobe for that silly lightning feature :p
     
  4. Tremayn

    Tremayn

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    looks pretty cool :)
     
  5. Singularity

    Singularity Thread Starter Hmmm amper!

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    yeh, the new ones are much brighter and alot cheaper than the earlier models.
     
  6. Singularity

    Singularity Thread Starter Hmmm amper!

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    bump....
     
  7. pXius

    pXius

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    Can you give some more detail, like lm output and the colour spectrum?
     
  8. Singularity

    Singularity Thread Starter Hmmm amper!

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    some more info from the site....
    Stylish RGB PAR64 LED-projector containing 212 high-power 5mm LEDs (70 red + 71 green + 71 blue)
    High quality Hewlett Packard / Agilent ' LED technology >100.000 hours!

    Mains Input: 230V 50Hz Power consumption: 28Watt Sound Control:
    Internal microphone DMX connections: XLR 3pin LEDs: 212 high power LEDs (R70 + G71 + B71)
    Beam angle: 15
    diameter: 216mm
    Depth: 235mm
    Weight: 3,0kg
     
  9. belindamotion

    belindamotion Google Master

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    I think that's what he want's you Guru's to find out...;):tt2:
     
  10. Singularity

    Singularity Thread Starter Hmmm amper!

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    and you can use a controller like this, a bit simpler than the one i had in mind
    @R1K
    [​IMG]
     
  11. danimal

    danimal

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    looking at the product datasheet I can't find any info on lumens/watt, which is what you're really after. my guess is that they are the normal 5mm superbright LEDs, rated in mcd (1 mcd = 0.001 lumen). taking the viewing angle of 15deg in account, that value goes down... a lot. an average rating for those leds (if that is what they are) is around 20- 30kmcd @20mA. unlike the CREE et al series, these are standard leds that run off low current.

    with 15deg view, 30kmcd = 1.61lm.

    so for example, if you have 212 leds each putting out 30kmcd that is 341 lumens total.

    212 leds running 20mA, each dropping around 3.5V means a total power consumption of 14.84W

    therefore lumens/watt = 23lm/W...

    compared to high power crees etc, where the lm/w is much higher it doesn't seem worth it.
     
    Last edited: 8 Nov 2011
  12. AfricaOffroad

    AfricaOffroad

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    Have you considered some of the DIY Cree based kits from companies like www.rapidled.com ?
    Proven products and are a known quantity with many reefers.
     
  13. danimal

    danimal

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    apologies, i neglected viewing angle in my calculations, fixed now :whistling:
     
  14. Singularity

    Singularity Thread Starter Hmmm amper!

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    This is what the light they produce look like in the day, crappy cell pics but you get the idea.

    white
    [​IMG]

    [​IMG]

    Blue
    [​IMG]

    [​IMG]
     
  15. belindamotion

    belindamotion Google Master

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    WOW..that's some serious distance...:p
     
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