i found a 24 inch 2 tube fixture at my home depot,
2 grow lights included and it was like $50 bux.
i have that an my 4ft by 2foot by 4 foot veiled enclosure
along with a 36 inch "light your reptiles" fixture.
hope that keeps my hibiscus going...
I use a 6500k CFL on some cages (different watts HO, but none of them high watt), and a small tube plant light on others.
I actually like the cfl best, as I can position it direct over the plant that needs light, without taking up too much of the cage top (space is at a premium with the grow light, basking lamp, uvb tube, dripper - need to leave ventilation space too)