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Thread: Light size recommendation

  1. #1

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    Light size recommendation

    I have a 45 watt flood light at 2850K. What size would a one sided screen need to be running on high output (less hours)?

    75 gallon tank with 75 gallon sump just rock n 2 clowns atm but been running for a year. About to upgrade lights for coral and will be adding more fish.

    Thanks

  2. #2
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    Welcome.

    Is the light a CFL or incandescent? And if CFL is it real or equivalent watts?

  3. #3

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    Just noticed its not CFL. If my screen is 1 sided 4×6 then what CFL would be best?

  4. #4
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    24 square inches would need at least 24 real CFL watts on one side. Could do more. Best would be 2-sided.

  5. #5

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    How do you determine the real watts? I have looked on the packages and only see wattage of bulb (60w only using 13w), 3500k and 820 lumens.

  6. #6
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    60 is the equivalent, and 13 is the real.

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