I found these last night at my local Home Depot. No, it's not a CFL, and of course there's nothing about it marketed as being anything to do with RE. It's a silly battery-powered closet light, but it has a jack for an external 12 volt supply connection. The connector's a typical coaxial power connector as used for many electronic gadgets, about a 5.5 mm (same as the Inchworm PIC programmer). You could always solder wires on inside if you don't want to use it.
The bulb's a 12 inch F8T5, so I assume that means 5 watts. It's fairly frugal on power
though: I didn't see it draw more than 0.46 amps from a 12 volt SLA, but I did have
skimpy leads with about 2 ohms of resistance. It's quite a bit less amperage than a 12 volt 5 watt no-name CFL I've got.
It comes with internal holders for 8 AA batteries if you want to run it that way, but
I wouldn't expect a set of AA nicads to last much over an hour per charge. In a
few minutes of playing around with it the worst problem I found was that it seems to
throw out a bunch of RF trash. A scanner with its antenna about 3 feet from the light
was locking up on a couple different frequencies. It also got a little warm, so it's not perfect.
Still, not bad for $10.95. Brand name on this is Amerelle (made in China)
http://www.amertac.com is the URL on the package. Model/SKU 73040. Comes with Velcro
mounting, but also has screw holes. http://www.amertac.com/content/products.nsf/Nite%20Lites%20&%20Specialty%20Lites/Utility%20Lites
/73040/p73040.htm
It was in stock at my local Home Depot, but I don't know about yours. There's also a
smaller model about 1/2 the length, but I was turned off by the fact that it runs on
6 volts and didn't look at it further.
Alan