My new video on DIY LED lights

Discussion in 'D.I.Y.' started by Jacques, Apr 22, 2017.

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  1. Jacques
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    Jacques Noob

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    This is my 4 Part video series and will consist of the following videos:

    Part 1 – The Novice Basics – what you need to know
    Part 2 – The Novice DIY - Building
    Part 3 – The Advanced Basics AND what you need to know
    Part 4 – The Advanced DIY - Building
     
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  2. jakkalsbothma
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    jakkalsbothma Aquascaper

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    Nice!

    So where's the rest???


    Sent from my iPhone using Tapatalk
     
  3. Jacques
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    Jacques Noob

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    Part 2 uploaded last night. Will upload part 3 in a week.
     
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  4. Clappies
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    Clappies Green fingers

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    Nice...

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  5. jakkalsbothma
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    jakkalsbothma Aquascaper

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    Awesomeness, I like it!!!


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  6. Megashell
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    Megashell Noob

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    This guy knows what he is talking about. I got plants from him, and shrimp. I got shrimp from two sources where the other person had a survival rate of about 50% from MC merwe farms 100% he breads them well, very hardy.

    Im actualy following this light setup. Great job
     
  7. Robk
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    Great project now I'm tempted but I have a tank with the following dimensions 1.5m (l) x 0.9m(w) x 0.9m (d). If I follow your depth calc I would need 27watts per lamp to be able to penetrate (9w/ 300mm) and according to your coverage calc (1 light per square foot?) this means I would need 15 lights this seems an inordinate amount and my gut feel is that I should be able to get away with about half of that number. Any advice?

    Further, I found these lights doing an internet search http://www.dx.com/p/27w-cold-white-...1kZ2PEFyiO6RINbTIPxoCFLoQAvD_BwE#.WW3qeelLfIU
    Would they work?
     
  8. Robk
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    Ok I think I can answer my own question research reveals that the the target at the deepest part of the 300o lux or lumen as a minimum and that only 20% of the lux available on the surface is transmitted to the depth of 1 meter. So by my rough calcs if I want 3000 lux I need to start with 15000lux and working on roughly 100 lux / watt from an LED globe I need 150 watts. Where did I get this from? http://www.americanaquariumproducts.com/Aquarium_Lighting.html under the section 3. Lux there's a lot more information here than I need but perhaps you might find it useful.

    For the more mathematically inclined there's a formula in this link http://www.aquaticplantcentral.com/forumapc/lighting/72619-light-wattage-vs-tank-depth-musings.html. The important part of this is not to assume a straight line as its exponential.
     
  9. Robk
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    Robk Noob

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    Another point further down gives the following info
    "
    Here is the general light spectrum absorption of water:
    • Only 73% of the surface light reaches a depth of 1 centimeter (less than a half inch)
    • Only 44.5% of the surface light reaches a depth of 1 meter (3.3 feet)"
    So my 20% is a but of overkill but the LEDs I selected have a beam of 120deg so there be some loss in that too.
     
  10. Joebanjo
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    Joebanjo Noob

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    Hi Jacques thanks for your great videos.
    If I may ask yourself or any other members help in getting the proper lighting for my aquarium, I have been to several places and everyone got a diverent light, story, advice they try to sell you and im not convinced.

    Im really battling with getting established monte carlo to grow all my ground covers are weak, s repens doing ok.
    Running CO2, 25 ppm inline reactor, all water parameters are fine dosing ferts complete with 50% waterchange once a week so I can only assume its light.
    Curent light is a Beamswork plant 7000 k added 4 × flood lights 10 w LED
    Tank sizes 1,2 long,400high,600wide, what would you suggest?

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