150w halogen light for refugium?

Discussion in 'Lighting' started by pXius, 29 Nov 2011.

  1. pXius

    pXius

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    Pretty much what the title says, I got my hands on a 150W halogen light and mounted it above my refuguim, its very bright and yellow. Got some cheato and caulerpa in there but can't tell weather they are doing ok.

    Light has been running about 3 days. Will it work?
     
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  3. archiecrain

    archiecrain

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    Will work....but wont it make things in the sump a bit too warm...?
     
  4. butcherman

    butcherman Moderator MASA Contributor

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    biggest issue will be the heat! but will work well as a light.
     
  5. pXius

    pXius Thread Starter

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    Its on reverse cycle, comes on when my lights go off so not really. But thanks. Hoping to get a huge macro algae farm going. :thumbup:
     
  6. saaid

    saaid

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    You keep your hand under that light for 10min and see if it's "no not really".
     
  7. pXius

    pXius Thread Starter

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    Obviously the light gets hot, but compared to the heat of the DT lighting its not much. Remember when this light goes on, the DT lights go off. (thats what reverse cycle means btw) So the heat generated is balanced out. Understand?
     
    Last edited: 29 Nov 2011
  8. saaid

    saaid

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    has nothing to do with reverse cycle, that halogen lamp will be placed over a concentrated area in your sump. DT lighting is open air basically and spread over the surface area of your DT. I know tank temp will drop from 26 to about 25 overnight and i have my sump lit 24/7. Your choice
     
  9. pXius

    pXius Thread Starter

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    So if heat is not a problem, whats the point of your post?
     
  10. butcherman

    butcherman Moderator MASA Contributor

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    is your sump enclosed?
     
  11. pXius

    pXius Thread Starter

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    Only on 3 sides, open against the wall. Also got 2x 20cm fans, one push and one pull in the cupboard which switch on should the tank hit 25.5, however they have not switched on in the last 3 days running the light.
     
  12. saaid

    saaid

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    was referring to my own tank, using it as reference as i use a 24w plc light which doesn't generate heat as a halogen light would. thats it, you obviously took offense by what i said.
     
  13. butcherman

    butcherman Moderator MASA Contributor

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    how far is the light mounted from the water?
     
  14. pXius

    pXius Thread Starter

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    No offense taken. Just failed to find relativity in regards to my question.

    40cm. Angled to hit the fuge so no light on skimmer chamber.
     
  15. Tobes

    Tobes Retired Moderator

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    Overkill. You will use a pot load of energy to do the same job that 2 x 20W or 2 x 15W energy saver globes can do. I used them in those holders with reflecters and my cheato was growing very well.
     
  16. pXius

    pXius Thread Starter

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    Thanks
    Saw Osram 20W spotlights that put out 900+ lm in warm white. I'll get some holders this coming weekend and give them a go.

    Will 2 for a 500 long fuge about 350 deep be fine?
     
    Last edited: 29 Nov 2011
  17. Tobes

    Tobes Retired Moderator

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    I made this and used with two 11W or 15W cool white energy savers - I think they are 5000k - 5500k which is closer to sunlight than the warm white which is 2000k - 2500k.


    [​IMG]



    [​IMG]
     
  18. Tobes

    Tobes Retired Moderator

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    O ja, remember if the chaeto doesn't grow quickly it is not to say the lighting is inefficient, there might be very little nutrients in the water to take up, so growth will be very slow.
     
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