"Paul" wrote in message
...

"Carlos" wrote in message
...
i have a hood with 192 watts, it comes with a fan so the lights would
not
affect the temperature. if you have two fans i would recommend lowering
the
lights until just above the tank. also, you loose many watts with
pedant
lights.

take care.

The light is setting on top of the 8" hood at the moment. At the bottom
of
the fixture it is enclosed and the only light escaping would be out the
back
of the partially open back of the hood. Thanks.
--
Paul




The problem isn't always with light escaping the hood when it's far above
the tank. A lot of light is lost because of the angle that it hits the
water, it simply reflects off the surface and get's bounced around in the
hood until it either escapes or gets absorbed. When you raise the height of
light source the ang ecome less favourable for entering the water. So
even if you've got a perfectl losed hood, it's still best to have the
bulbs as close to the water as possible, unless of course your hood is
covered with mirrors inside.

Harry




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