RSS 100W Lumia 5.1 is the multi-chip LED for the DIY masses

Discussion in 'RSS Feeds' started by MASA Admin, 28 May 2013.

  1. MASA Admin

    MASA Admin Moderator

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    [​IMG]

    The fine people over at LED Group Buy have been busy it seems, working on the Lumia 5.1 multi-chip LED. Many people feel that high power multi-chip LEDs are the holy grail of LED lighting, regarding Kessil as one of the best solutions available with tight chip spacing, high single point intensity, and low color separation. It’s been great for those that have wanted to purchase a fixture outright, but hasn’t been something that has been within reach for the DIY enthusiast. It would seem that this problem has been fixed.

    [​IMG]Sporting an average power of 100W, the Lumia 5.1 is a serious bit of kit. Each of the 50 chips is rated for operation at 500mA (~100W), with a limit of 700mA (~126W) for those that really want to push the limits of this product (excellent heatsinking is required). Five channels of control give complete adjustability to this full spectrum LED. The five individual channels are broken down like so:

    Channel 1 – 4500K neutral white

    Channel 2 – 450-453nm royal blue

    Channel 3 – 427.5-430nm hyper violet

    Channel 4 – 660-665nm deep red / 492.5-495nm turquoise

    Channel 5 – 410-412.5nm violet / 470-472.5nm blue

    While it doesn’t offer super fine control like you would see in a high channel count fixture like a Radion Pro, it’s a good blend of colors, and the channels that are mixed look like they balance well.

    [​IMG][​IMG][​IMG]

    [​IMG][​IMG][​IMG]

    A lot of thought was put into this LED, with a tin plated copper base for good thermal performance, 99.9% pure gold bond wires, and Dow Corning optical encapsulant. The terminals are pre-wired for easy installation, and the bolt pattern is designed to fit perfectly with the MakersLED line of heatsinks. The only cautionary point is the low thermal limit of 70C. This is because of the low thermal limit of the deep red LEDs. The rest of the chips can certainly handle higher temperatures, but you have to go with the lowest common denominator on this.

    [​IMG]

    Overall, it looks to be a solid offering, bringing something new and novel to the DIY world, and is available now. We will have a hands-on with this LED shortly.


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  3. belindamotion

    belindamotion Google Master

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  4. Visser

    Visser MASA Contributor

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    Wow!!! This could work perfect for a direct replacement of 150-250W metal halides & would give the same shimmer effect!!!
    Probably costs an arm & 2 legs though... But excelent design though!!!
     
  5. Andre@ReefAquatics

    Andre@ReefAquatics Sponsor

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    Extremely interesting, however the chip alone is USD100, without drivers (I'm guessing you would need 5 for individual control) , heatsink ,pwm controllers, shipping and vat ?

    But super cool anyway.
     
  6. dallasg

    dallasg Moderator MASA Contributor

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    they are cool, like the dreamchip from ebay
    100W LED = $10
    100W Driver = $24
    Heatsink = $29
     
  7. Andre@ReefAquatics

    Andre@ReefAquatics Sponsor

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  8. dallasg

    dallasg Moderator MASA Contributor

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    i meant as in 100w like the dream chip...
    but most now on single colour
    there is a place that will custom make with all the colours, i think on aliexpress futureled IIRC
     
  9. Andre@ReefAquatics

    Andre@ReefAquatics Sponsor

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    ohhh
     
  10. Visser

    Visser MASA Contributor

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    Agree... The led alone isn't priced too bad, but with 5 drivers (& possibly a digital controller that can control 5 channels) you will be looking at R6000 minimum... You will also require a VERY good heatsink with a powersupply to run a performance cooling fan & then a lens to distribute the light evenly... Thats going to work out a lot...
     
  11. Andre@ReefAquatics

    Andre@ReefAquatics Sponsor

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    Yeah sadly it will all amount up and a pre manufactured unit will cost less, besides all the effort of the build, especially a 5 ch. controller and neatening up the build all just sounds like too much effort for no cost gain.
     
  12. dallasg

    dallasg Moderator MASA Contributor

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    if i had to build a unit again, i would def go with multichips
    Royal Blue, Actinic/UV, and 14K
     
  13. Quintus

    Quintus the irish aXeman

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    and modular????
     
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