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Featured 250w luminarcs v radion pro

Discussion in 'Reefs' started by heller792, Nov 24, 2013.

  1. heller792

    heller792 Registered

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    Did a side by side today in 3 location on each side.

    par for 250w halide
    top 420
    middle 250
    bottom 120


    radion 70 percent
    top 600
    middle 360
    bottom 160


    Dave
     
  2. sityson

    sityson Registered

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    Wow...
     
  3. sityson

    sityson Registered

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    Has that made your mind up Dave..?
     
  4. ged@fishnochips

    [email protected] Registered

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    How high have you got them above the water level Dave?

    I have just bumped mine up to max 70% and also to acclimatise over 2 weeks starting at 60% and they are now on 70% of 70% which is about 49% I think in total.
     
  5. heller792

    heller792 Registered

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    About 11 inch GED, I raised them for better spread
     
  6. ged@fishnochips

    [email protected] Registered

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    Cool - Mine are too close to the surface for sure, will have to devise a way of highering them then.
     
  7. screwloose

    screwloose Registered

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    you tried lifting them up ?








    :lol:
     
  8. heller792

    heller792 Registered

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    [MENTION=11471]screwloose[/MENTION] came round last night and confirmed the difference between the corals under each light, the corals under the radion have more growth and more colour than under the halide after 6-6 weeks. The test has been a great way to look at the differences and its going to be another few weeks yet before i have enough cash for the other radion so fingers crossed the improvements continue
     
  9. jamesfirth1

    jamesfirth1 Registered

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    What sort of area is the radian covering? my tank is 32" long, I guess I would end up needing two, which is very expensive for a tank my size.
     
  10. liam0

    liam0 Registered

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    Ok I'm sorry I borrowed/lent you such **** lights!

    Is is there a cross over between the lights Dave?
     
  11. heller792

    heller792 Registered

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    probebley need 2 but if your rock was in the middle u could make 1 work. Mine is high for good spread and positioned towards the front and tilted to the back.
     
  12. r21

    r21 Registered

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    I'm going with a single Radion on a TMC 900, but my aquascape will be a central bommie so hoping it will be enough
     
  13. heller792

    heller792 Registered

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    fit it towards the front and tilt it so the corals grow towards the front instead of straght up
     
  14. StarfishEnterprise

    StarfishEnterprise Registered

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    Word is if you use a pro with the new tir lens that cover 120º it will cover a 36" sq.
     
  15. heller792

    heller792 Registered

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    my tank 38 inch wide pal and tilted.works perfectly
     
  16. Burscough Aq

    Burscough Aq <span style="color:#D4AF37; font-weight: bold;">Ad

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    That is the claim Ben I will have photo's very shortly as I have a customer who bought 2 pro's yesterday with the extra lenses, currently running t5's, so is going to photograph tank
    1 with current t5's
    2 with his 2 pro's
    3 with the pro's with lenses fitted

    to show spread and light penetration, unfortunately the par meter was out when he arrived so he cant do any readings
     
  17. heller792

    heller792 Registered

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    Ive not got the meter!!!!
     
  18. jamesfirth1

    jamesfirth1 Registered

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    That will be worth a look cheers Steve.
     
  19. screwloose

    screwloose Registered

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    about same brightness, but better colour sats for the radion
     
  20. jas

    jas Registered

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    Over here the trend of comparing PAR is waning. This because mostly all new light systems acheive acceptable PAR for photosynthesis. The trouble is, depending on spectrum and light type MH, LED etc.. The PAR meter's accuracy will be affected. Add to that the variety of bulbs and ballast combos it becomes too complicated. For example, 2 years ago I did a XM 10k vs Radion vs 20k radium thread( 250w).
    The PAR measurments where as expected 10k highest followed by Radion then Radium with the least.
    Many reefers posted thier measurments in contempt of mine because I used an electronic ballast. One dude had 1000+ PAR with a Radium on a HQI magnetic ballast!!
    So after all that. I decided all quality lights are acceptable.

    FWIW ,Dana Riddle mentions in one of his articles 250-300 PAR is more than enough :)
     
    Last edited: Dec 26, 2013
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