DIY LED Strip (SMD 5630)

Discussion in 'D.I.Y.' started by Blueneon, May 18, 2015.

  1. jody
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    jody Green fingers

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    measured the light yesterday from 1 of the 18w bulbs. at 60cm from bulb. lux 10000 6500k
     
  2. Trev Pleco
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    Trev Pleco Algae destroyer

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    Correct, LED 6500 floods do work well and are lot easier to install and are more rugged and less finicky having been designed for a life outdoors. The water shimmers and sparkles with their intensity which looks stunning..

    However here are the negatives from my experiences, they are costly in comparison, but what has irked me is that the intensity seems to have dropped substantially after eighteen months to two years after continuos day time use. I only found this out the other week when I purchased a second 20w flood from the same outlet and placed it next to the tank with the old one, the difference was substantial and the colour had also warmed up quite a bit. I also have 10w and 30w floods on other tanks. These were good quality non gumtree LEDs :), so I will shortly be taking it up with the supplier..

    The box states long life 50,000 h and ''light decay is less than in 10,000 hours testing, 5%'' , whatever that means..?
     
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  3. tyronegenade
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    tyronegenade Specialist

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    Thanks, Jody. That is about 124 PPFD---which is great at 60 cm. Was this out of the water? I assume so...

    If the strips have the same 120o spread then at 30 cm the Lux should be about 40000 lux (or about 500 PPFD). I think you might need to dim those a little to keep algae under control... But those 18 W strips look like a great deal for lighting planted aquaria.
     
  4. jody
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    jody Green fingers

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    It was out of water lol. My phone isn't waterproof haha. They are pretty potent. My barbs hide away when they come on
     
  5. tyronegenade
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    tyronegenade Specialist

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    You might want to put a dimmer switch inline so you have some control. If you can get the lux down to about 2000 lux at 60 cm you should have about 100 PPFD at 30 cm and this would be ample for the plants and the fish should feel OK too.
     
  6. JCL
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    JCL Green fingers

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    Looking at the pics you posted earlier, these 18W 'bulbs' look like strips to me.
    How long are they and where did you get them? And how much $ ?
     
  7. jody
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    jody Green fingers

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  8. jody
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    jody Green fingers

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  9. tyronegenade
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    tyronegenade Specialist

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    Hi Jody, can you supply some more info for me, I would like to know how the light spreads out. Which scenario below best fits what you see:
    [​IMG]
    I need this info to think about how to array them over an aquarium to get good light distribution.

    Thanks
     
  10. Trev Pleco
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    Trev Pleco Algae destroyer

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    Sadly quite a bit of this great info in this thread is irrelevant, as the quality of strips and intensity of light evidently varies between suppliers and sources, as with their life spans. Even the better more expensive strips start to fade within a year from my experience, so I guess this also begs the question as to whether they are designed to be used eight plus hours a day every day ?
     
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  11. jody
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    jody Green fingers

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    More like B.. They might fade. . I can't tell yet but if they do I will definitely replace them with the same bulbs. . Or 20w LED floodlights
     
  12. Trev Pleco
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    Trev Pleco Algae destroyer

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    floods cost more of course, but as I found out they also fade pretty badly within eighteen months and this was a well known recommended brand...Meteor

    I guess if you treat the LED strips as you would tubes with having to replace them yearly then they are a not too bad, just a bit of a ball ache to install each time compared to twisting out a tube :). Also remember the damn transformers also have a life span !
     
  13. jody
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    jody Green fingers

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    Yeah. I'm just trying something new. I had a 2 amp 12v adapter laying around. All in all I probably spent about R200 on my lights. Beats the R600 T5 ballast not to mention the bulbs. + space requirements. Personally I don't have much space in my canopy so. . Yeah. If it does bomb out its not the end of the world. I'm sure in a couple of years leds are going to be dirt cheap and much more reliable.
     
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  14. tyronegenade
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    tyronegenade Specialist

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    Thanks, Jody.

    I can only find 7W types in the Neutral White (highest color rendering index of the range). Now I just have to figure out how to set them up in series. These are very cheap, like $2.60 each so they are cheap enough to be expendable.

    Bye
     
  15. jody
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    jody Green fingers

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    That's good but 7w isn't much. I wouldn't use anything less than 10w. They just aren't bright/intense enough.

    Keep me updated. I'm interested to see your results
     
  16. tyronegenade
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    tyronegenade Specialist

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    I will run several 7W LEDs. Based on your 18W's lux value I think these are plenty bright.

    It is an interesting experiment. My biggest hurdle is getting an appropriate aluminium channel as a heat sink.
     
  17. Luis Embalo
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    Luis Embalo Valued Contributor

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    T5's are reliable.. but a good pair of LED floods does the work.. especially those outdoor units..
     
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  18. Sous
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    Sous Algae harvester

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    Did the D3100 auto expose the image ? You said you shot it in raw but was it in manual ?

    Otherwise very helpful ,I was planning on doing this for my 18l nano but was also wondering about the brightness .

    Thanks @Blueneon
     
  19. Blueneon
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    Blueneon Green fingers

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    Can't remember on what setting I had at the time, it was likely on manual as I don't tend to use the auto feature much. But as to what I set the exposure / shutter speed for the shot *shrug*
     
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  20. Willem01
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    Willem01 Noob

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    Can you give me a indication what LED driver u used to power those different light bars and where did you purchase it.
     

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