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Chihiros led lights

Discussion in 'Lighting' started by Skirmitch@gmail.com, Oct 22, 2016.

  1. Skirmitch@gmail.com

    Skirmitch@gmail.com Junior Poster

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     Hey guys, I'm New here and new to aquariums as well. I'm an electronics engineer with some biology as hobby, some amateur microscopist experience, bonsai and some other things here and there. I have been researching a LOT about the different things and I'm all set up except for the lighting. I will have a heavy planted tank jungle style 25 gallons, 80x30 cm as base and 40 cm tall. I want to have the ability to grow ANYTHING I want in terms of not being limited by the light ("aaaah no, u can't put that cuz u don't have enough light"). As I'm an electronics engineer I planned to build my own lamp and was thinking in cree LEDs as they are the ones I found more good comments about but here in Chile I see that some LEDs called Chihiros are very very popular and some even rate them as one of the best in the hobby and quiet frankly they are way cheaper than cree. As I'm just starting, I prefer asking than using my electronics knowledge: what do u think of these Chihiros LEDs?
     
  2. brrrpr

    brrrpr Subscriber

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    I personally don't know them but if you want to be sure about the caracteristics of the best lights just look and copy the specific of the best manufactures like "AI" for instance.


    Then after you complete your project, if you like you can post it here for us to learn how to build a fixture.
     
  3. Apprentice

    Apprentice Lifetime Members
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    The only info I can find on Chihiros LED is that they are an ADA Aquasky knock off light fixture.http://www.casnb.com/en/ProductView.Asp?id=10


    I can't find anything on individual led lamps. If it is the fixture you are talking about and this light is similar in specification to the Aquasky. It will put out about 50 par on average. Assuming they sell fixture that is appropriate size for your tank. Uses SMD leds and does not have dimmer controls.


    Cree XPG G2 about $4 per led U.S. Phillips Luxeon Es about per led $3.50 U.S. Don't know how they compare to prices in Chile?


    Me personally, I prefer led fixtures that I can control the light output. Especially if the fixture can't be easily raised or lowered.
     
  4. Skirmitch

    Skirmitch Junior Poster

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    Well, the thing is that here in Chile they are presenting them as excellent lights of the highest quality and if I can buy it here instead of having to import cree chips, the savings come from the freight, not the chips themselves. Hasn't anyone ever used them or have real data on how good they are? Seems everybody here use them (well, a lot, not everybody) but as I had never seen them in international forums, my doubts arose. I would really love an opinion from someone having them, I cant disregard what everybody is saying in Chile without real proof from "professional" aquarists or at least ppl who know them well.
     
  5. Apprentice

    Apprentice Lifetime Members
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    It is difficult to know. Being an ADA copy not likely available in U.S. retail brick and mortar stores. I did see some for sale on ebay. Apparently they do have an option for dimmers according to one post I read.


    I did find some posts and reviews on other forums for this light. Locations include U.S., U.K., Singapore and Australia.


    Copy and paste the text below in google search.


    Chihiros led lights inurl:discussion|"forum"|"forumdisplay.php"|"search.php"|"showthread.php"|"showtopic.php"|viewthread|viewtopic | intext:"next thread"|"next topic"|"send private message"


    This will display the relevant results. Hope this helps. If you do end up buying this light. Please post a review of it here. I would be interested in knowing how it performs.


    Regards, Rob
     
  6. Tom Barr

    Tom Barr Founder
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    The brand seems good for knock offs, worth the small $.


    I use their electrolysis water splitter, Twinstar knock off.


    Not bad for 50$, probe replacement was 20$.


    Light would be okay, but if I were you, given your background, the Cree DIY approach would likely be best.


    But if $ and speed of the build, the plant goal etc, is more modest, then they are good.


    But you want to grow most everything.............so Cree is should be, or T5.
     
    3 people like this.
  7. Nuno M.

    Nuno M. Member

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    Hi there Skirmitch,


    I'm using the Chihiros A-Series in my 120cm planted tank you can follow the journal here ( http://www.barrreport.com/forum/barr-report/journals/240025-crystal-mountain ), I think you can grow whatever you like with those fixtures I have some par readings of them in air and in my tank here it goes, hope this helps on your decision ;)


    Chihiros Serie A 120cm . 65W . 8000ºK


    cm PAR


    10 286


    20 142


    30 91,2


    40 64,3


    50 47,8


    2xChihiros Serie A 120cm . 65W . 8000ºK


    now with water . 120x50x50 tank . 6,5cm fixture high + 2cm water level = 8,5 cm LED to water



    cm PAR PAR (with apogee converter factors**)


    10 265 213


    20 192 140


    30 152 106


    40 132 110


    48 122 82


    All measures took in darkness, open space to avoid reflections, open air (no water).


    Always took reading in the axis of light (the best value).


    Sensor used was Apogee SQ-120* without the LED correction factor (direct measures).


    * Apogee Underwater factor correction 1.08


    ** Using 'Underwater-PAR-Calculator' made by apogee.


    *** Correction factor for LED (when compared with T5) CW -4,2% ; NW -6,1%; WW -9,9% (not applied to this test)


    I've done this readings for a couple more led fixtures, I will open a thread with all the gathered info
     
    David.Oh likes this.
  8. Skirmitch@gmail.com

    Skirmitch@gmail.com Junior Poster

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    Thank you all guys for the help, much much appreciated. I dont think there's another forum where I would have gotten an answer from the famous Tom Barr and also another answer with the PAR readings!!!!!!!!!! freaking awesome
     
  9. rajkm

    rajkm Article Editor
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    Nuno M. Do you have PAR readings with just one Chihiros Serie A?
     
  10. Nuno M.

    Nuno M. Member

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    Look above tested in openair
     
  11. rajkm

    rajkm Article Editor
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    Open Air par v/s with water is generally different. That's why the ask.


    Open air light travels unobstructed and can travel loner distances, but with water how much of light travels reduces as the depth increases.
     
  12. Nuno M.

    Nuno M. Member

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    You are completely wrong in that assumption, in fact the PAR increases in our aquariums do to reflections, see the correction factors on measurements in the tank ;)
     
  13. Apprentice

    Apprentice Lifetime Members
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    To confirm what Nuno is stating.


    Par reading open air. Measured back of tank which is covered by black cloth. Par reading 32.





    Tank with no water. Par reading 29.





    Tank with water. Par reading 37.





    Regards, Rob.

    Open Air.JPG

    Tank No Water.JPG

    Tank With Water.JPG
     
    #13 Apprentice, Dec 17, 2016
    Last edited by a moderator: Dec 17, 2016
  14. Darrel Bayani

    Darrel Bayani Lifetime Members
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    Sorry to dig up an (slightly) old thread. In what setting was the Chihiros A-Series when the PAR readings were taken? I recently purchased and setup a A601 on my 60p Mr. Aqua knockoff. On the maximum dimmer setting the fixture is super bright. I ran it at the 5th from lowest setting and started to get BBA and a tiny amount of hair algae, so I dropped it down one notch. I'm assuming the PAR values are changing when you change the dimmer settings.
     
  15. tinkerman

    tinkerman Subscriber

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    In post #7 it looks like the first set are with no water and second set are in tank with water. Par readings seem little miss leading as set with no water is one unit and second set are with 2 units over a tank. Yes PAR will change as you dim the light down, you can decrease PAR also by taking off the optics if the light has them.
     
  16. RochMesa

    RochMesa New Member

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    Hi...i am a new user here. I don't have much idea about these LEDs but according to my friend's opinion its good to use. But there are many more available in the market which you can use for the same purpose.

    seo consultant
     
    #16 RochMesa, Sep 17, 2018
    Last edited: Sep 25, 2018
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