pc's
I have found the bulb. You get it at Home Depot. The brand is Commercial Electric and the part # is 772-429. It is a self ballasted screw in PC rated @ 19 w. Claims to be equal to a 75w incandescent. I have to take issue with them on this. This thing is WAY brighter than any 75w incand bulb I have ever seen. It hurts my eyes to look at it...makes me see spots! It is 6500k and is called a "daylight". The light is a blazing blue/white. I also, although they have not replied to my email yet, bought a Lights of America Fluorex fixture. It is the largest one they had at about 6"x10". It is a sealed outdoor fixture and has a 65w 6500k PC bulb. I used it on the upstairs porch to replace a couple of old incand floodlights. This thing is like having a piece of the sun in your yard. It lights up the whole side yard about 40' wide and 60' out. It only cost about $30.00 too. This thing would be great to light a nano tank as long as you had a tall canopy or as a hanging pendant over an open tank. I don't really know, without doing some experimentation, how well these fixtures would adapt to aquarium usage. Just have to try it out. The bulb mentioned above would allow you to have a nice small planted tank with one of the cheap incand strips though. Or it would be great to light a refuge.
Logan J