[lochaber]

Real cheap and easy is to just get a standard 10g incandescent hood, and stick in some daylight CFLs.

You'll have to replace them every now and then, but 13-23 watts or so is a pretty common size, so is fairly cheap. It will probably be several years before the cost of replaced bulbs and extra energy use will come anywhere near an LED setup.

 

[lochaber]

Another cheap option for open-top would be to make CFL pendents out of brooder lights, two would probably work great for a 10g (might have to search for a higher wattage CFL then what you would use in a hood, since it's going to be further from the substrate), and you should be able to get them from somewhere twixt $10 and $15ish.

 

[lochaber]

Thanks for posting that Raymond S.

rcs0926> I wasn't thinking of a complete product so much as I was a DIY bit. CFL is just Compact Fluorescent Light - the type that Raymond linked to, designed to fit in a standard twist-in light bulb socket. They are fairly common and inexpensive, and the daylight ones seem to work fairly well for smaller tanks. The brooder lamps make excellent (and cheap) reflectors, and you can either use the clamp, or remove it and hang them from something. As Raymond said, one bulb would likely be enough, but if you hang it higher off the tank, you're going to loose some intesity, so in that case you may want a bigger bulb or another lamp.