led lights

Discussion in 'Lighting' started by marcel, 28 Aug 2009.

  1. marcel

    marcel

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    Hi all
    I am marcel and new to this hobby

    A lot has been said about led lamps on forums like this worldwide.
    One of the things I do for a living is manufacture led lamps. I want to use only led’s for lighting on my first system. I believe the led lights that’s available now is too expensive and also not the right type for this application.

    Below you will see three led lamps the big lamp use 220 high bright led’s, how much this lamp will cost depends on what you put in it. You can get high bright led’s that costs anything from R1.50 up to R12.00 each.
    It’s about finding a balance between an affordable led and sufficient light output.

    The small lamp on the top use a high power (1w led) with an optical lens, what the lens does it changes the light in to a torch like beam. The lights that are commercially available use many such lamps as a unit, hi power led’s have a heat sink making it imposable to place them close together to create a single beam.

    The third lamp use a high power led without the optical lends, not impressive, I put three of them in my sump.

    I use all kinds of led’s for different applications and I think the lamp for this application is the big lamp using 220 led’s. I think three of these lamps should be sufficient for a tank of 1500 x 500 x 500.
    My tanks full of led lamps at the moment for testing.





    [​IMG]


    [​IMG]

    My tanks full of led lamps at the moment for testing.

    [​IMG]

    The other things I do for a living is design and build automation equipment. Will post more on a controller.

     
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  3. chikaboo

    chikaboo

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    Wow - Firstly welcome to MASA - plz tell us more about your setup
     
  4. H0nda42

    H0nda42

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    Hi Marcel, that is very interesting to hear and I really hope you would be willing to offer this to other reefers.
     
  5. shane

    shane

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    :welcome7:
    Marcel,
    Great to hear from you hope you enjoy your stay here.
     
  6. FransSny

    FransSny

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  7. jacquesb

    jacquesb Retired Moderator

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    A VERY WARM WELCOME to MASA, Marcel! Great to have you on-board!

    WOW! This is an interesting topic!

    Do you have access to a PAR meter? If so, could you perhaps take some PAR readings underwater, and let us know what the PAR output of these different LED lamps are?

    This would be the ultimate test to know if you can use these lamps for corals, or whether they would be good only for a "Fish only" tank?
     
  8. Furbz

    Furbz

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    that actually looks very good!
    def will tag along and see what the outcome of this is!
    and welcome!!
     
  9. Pugsly

    Pugsly

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    Welcome Marcel!
    it looks great. But as said would be good to know what the PAR readings are to see what they would work for!

    Very interested in this!
    Job well done by the way - always great to know there are people out there trying to develope new things for us!
     
  10. Raven

    Raven

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    wow - dude!
    This looks very cool, and I REALLY do hope that this will work on corals...Even if it's just enough for softies (for now)!

    But hey- where is my manners -
    Welcome to MASA mate! :)

    Can you maybe give us a bit more information on these lamps...
    For example what will the total power consumption be for these lamps, seeing that it's LED's it is probably not that high - and you won't have a temperature problem!
     
  11. Boendoe

    Boendoe

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    :welcometomasa2: Nice setup dude will love to know the PAR readings on those LED.
     
  12. martinhal

    martinhal

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    Welcome !!! Tagging along ...... LED lights .......... :thumbup:
     
  13. riyadhessa

    riyadhessa

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    Welcome to MASA...
     
  14. shiks

    shiks

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    WELCOME>>>tagging along :)
     
  15. lanzo

    lanzo Sponsor

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    WELCOME TO mASA:thumbup:
     
  16. aslam

    aslam

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    Hello Marcel and welcome.Do you have any heat issues using these led's.Some tank specs would be nice.
     
  17. Tony

    Tony

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    Hello Marcel and welcome. I'm watching this thread with interest
     
  18. marcel

    marcel Thread Starter

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    Hi all

    I don’t have a PAR meter don’t really know what it is. I use a LUX meter
    With the led’s I am using on the big light I get 13000 k having the meter about a 100mm away. I can up that a bit more with different resistors. The small 1w lamp is more than 20000 k but its light is concentrated on a small area. (See picture)
    I think this light will work well for corals if the beam shines directly on it.
    I know someone with a color meter, will try and have some tests done in the next week or so, don’t really know if such tests will mean anything. I don’t have anything alive in my tank as yet. When I am ready I will start with a few frags and see how they perform under different light conditions. I must first finish making my controller and make sure it functions properly before I put something in my tank that can die.
    [​IMG]
     
  19. Nemos Janitor

    Nemos Janitor

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    Welcome to MASA marcel. You will find the details of two PAR meters in this thread. PAR is very important to marine lighting. If you are going to make LED lighting i suggest you obtain one because everybody will be asking what the PAR values are at certain depths in an aquarium.:thumbup:
    Light PAR meter - Measuring Equipment
     
  20. ziyaadb

    ziyaadb

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    welcome mate
     
  21. marcel

    marcel Thread Starter

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    Hi all

    The lights I make are mostly for mining applications. For testing I had to built a tube and a fixture to line the light up with the sensor, if you moved the light just a few degrees the LUX reading could fall by half. The SABS use a machine with laser beams to line up a lamp with a sensor. I don’t think by placing a PAR sensor in a tank will give you an accurate reading how will you line it up? I would say if you place 10 PAR sensors in a tank on different locations at the same depth you would get ten different readings. The only way to get an accurate reading would be to have an empty container, with the sensor at the bottom that you lined up with the lamp and then fill it with water and do your test. On one of our lamps we used a clear plastic to protect the lens this started to scratch after a while and we lost up to 30% of our light output. This would also happen if your water were dirty. Now you have a PAR reading what do you do with it? Is there a chart that tells you that coral x must have a PAR reading between that and that.
     
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