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How High should 400W be above the water surface?

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  • How High should 400W be above the water surface?

    Can anyone give the opinion about the hanging height of 400W SE lamp?
    (the min. and max. height)
    Thx!

    Bob

  • #2
    Just want to know the usual height people hang the 400W SE bulb

    Comment


    • #3
      I will measure mine today at lunch...

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      • #4
        thx ggjeff!

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        • #5
          Mine are 9" above the water....

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          • #6
            Bob, welcome to ZEOvit.com 7-9" is the norm, depending on surface water turbulance/splash. Bob
            "There might be something to this ZEOvit"

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            • #7
              I use acrylic to cover my overflows for spalsh also....

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              • #8
                I'm running mine about 12" above the surface but I'm looking for spread from the 400 watter and not so much par.
                SteveU
                “People are very open-minded about new things - as long as they're exactly like the old ones.”
                ...Charles F. Kettering

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                • #9
                  Good point, Steve, plus, heat from the lamps can be more easily dispersed. Bob
                  "There might be something to this ZEOvit"

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                  • #10
                    10 inches i have mine
                    Nick
                    Nick
                    180G SPS Mainly
                    10 Bulb T5 Starfire
                    Calcium Reactor
                    3 Tunze 6105's
                    Profilux Controller
                    ATB Return w/ wavysea
                    ATB M External Skimmer


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                    • #11
                      Thx everyone!
                      So 7"-12" is what everyone have so far.
                      Hey Steve, by hanging 12" above the surface, do you get any color lose issue?
                      Thx!

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                      • #12
                        12" here.
                        400 gallon reef, Bubble King 300, I~Spin, 2 x 10,000K BLV 400W, 2 x 20,000K Radium 400W, 2 x 6,400K Osram 400W, Schuran Jetstream 1, AquaController Pro

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                        • #13
                          I'm using a luminarc reflector with the 400W SE. Before I had a 250w SE over this spot and I really haven't seen any change other than I'm getting more light over a larger area.
                          I'm using this
                          I got three of them through Madison and a group buy.
                          http://www.pacificgardensupply.com/l...lumenarc3.html
                          SteveU
                          “People are very open-minded about new things - as long as they're exactly like the old ones.”
                          ...Charles F. Kettering

                          Comment


                          • #14
                            Now that's a nice looking reflector. How much does it cost to buy just the reflector?
                            It says it weights 12 lbs? That's kind of heavy for a reflector.

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                            • #15
                              They retail for about $150.00 USD which includes the reflector, mogal base socket and cord with male-end plug. The socket is mounted to a seperate extenision which allows you to move the socket further in or out of the reflector based on the wattage/size of the bulb.

                              As for the weight... I don't know where the 12lbs figure comes from. I just put one on my scale here and it's less than 8lbs. That includes the reflector, extension housing which is galvanized steel, mogal base and base extension and the cord & plug.

                              SteveU
                              “People are very open-minded about new things - as long as they're exactly like the old ones.”
                              ...Charles F. Kettering

                              Comment

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