Lights that have ripple effect

Discussion in 'Lighting' started by tanker, 14 Nov 2008.

  1. tanker

    tanker Member

    Messages:
    102
    Location:
    Malaysia
    I'm planning my next tank, probably 3ft or 4ft. I like lights that have ripple effect on the substrate and plants, unlike normal PL tubes.
    I was told that only metal halide lamps are able to give such effect :( its expensive and makes the water temperature too high, i'll need a chiller with the weather over here.
    is metal halide the only light able to do that?
     
  2. Garuf

    Garuf Member

    Messages:
    4,959
    Location:
    Leeds.
    Any point source light will give the effect, metal halide are the most commonly used. LED's also give this effect and are becoming much more readily available, If you're serious you can use these as your sole form of lighting or you could use them to supplement your existing lighting.
    There are 2 options, DIY units or secondly there are readily available banks and or strips available ready made, these aren't exactly cheap however.
     
  3. Steve Smith

    Steve Smith Member

    Messages:
    4,428
    Location:
    Leamington Spa, UK.
  4. Themuleous

    Themuleous Member

    Messages:
    4,126
    Location:
    Aston, Oxfordshire
    I get this a bit from my normal T5's

    Sam
     
  5. Luketendo

    Luketendo Member

    Messages:
    463
    Location:
    West Sussex, England
    Same but not anywhere near as much as other light I imagine.

    However yes you'll be looking at Metal Halide or LED's if you want the most ripple.

    Metal halides are inexpensive compared to LEDs, produce lots of heat and cost a lot to run.
    LEDs are expensive, but produce hardly any heat and cost a lot less than Metal Halies (saves a lot of electricity.)

    The TMC LED strips are meant to be better than a 24W PC light each strip.
     
  6. Steve Smith

    Steve Smith Member

    Messages:
    4,428
    Location:
    Leamington Spa, UK.
    As I say, if it's simply the ripples you want you could DIY something with some LEDs stashed in your hood/luminaire. As they'd be a direct light source (if you use powerful enough LEDs) you should get the desired effect :)
     
  7. tanker

    tanker Member

    Messages:
    102
    Location:
    Malaysia
    thanks for the suggestions.. hmm, either way it is not going to be cheap. perhaps still need to give LED some time for it to become more affordable. metal halide + chiller is going to be expensive, not to mention running costs..
    looks like i may have to settle with T5
     
  8. fishgeek

    fishgeek Member

    Messages:
    117
    Location:
    west sussex
    a normal old incandescent desk lamp is a spot source

    anything that does not have a diffuser in is fine for the ripple effect
    the other issues are , hot bulb and splashing ... can be avoided by a simple plastic shield
    light intensity and plant growth.... doesnt have to be only light used


    you could easily rig up a clip on desk lamp , i assume open top tank if worried about warm ambient temperatures, with some form of shielding of the bulb


    andrew
    just throwing idea out there
     

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