Intenstity is not strictly a function of wattage. Watt for watt, metal halide bulbs are more intense than any other form of lighting, PC lamps being second. A good example is this: Why not put 4 100W incandescent bulbs over your tank? Thats 400 watts!
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Are you saying that the 30W NO bulbs will put out 90W?
The fact of the matter is that there are no really inexpensive and effective lighting solutions for reefs out there. There are effective solutions and there are inexpensive ones, but not both.
For my 180, I have over $900 in lighting alone, not including the time and money spent building my hood! (I have 3x400W MH + 4x96W PC Actinic)
NO lighting is great for growing coraline algae, but not corals.
Ernie
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claims that an Icecap 660 ballast can run 4 Verilux 4' 32W NO bulbs at almost 90W each.
Are you saying that the 30W NO bulbs will put out 90W?
The fact of the matter is that there are no really inexpensive and effective lighting solutions for reefs out there. There are effective solutions and there are inexpensive ones, but not both.
For my 180, I have over $900 in lighting alone, not including the time and money spent building my hood! (I have 3x400W MH + 4x96W PC Actinic)
NO lighting is great for growing coraline algae, but not corals.
Ernie