My compact fluorescent bulbs are 70 watt equivalent, 6500K and 1165 lumens. jut wanted to share the info of what I have found. I imagine one of them light a good sized tank plenty bright for most plant.

I was curious after reading your post Ed about penetration being an issue. I know it will diffuse a little but the lumens lost shouldn't be significant. I know for aquariums one has a lot of lost light that low growing plants can't use but through glass and air I wasn't aware that there was that much difference in the first 2 feet of lighting. Good reflector and quality lighting being used of course.

If I don't add a water feature like a waterfall or other running water type and only put in a pond section how high should I make the false bottom?