I used to raise Lady Gouldian Finches and our aviarium required a natural sunlight bulb or their color would fade and they would get sickly.
I know exactly what you are talking about but I'm drawing a blank as to what they are called. THey are also marketed as plant lights.
We bought the 4' long tube because that is what the fixtures required but it was not flourescent or halogen - I could ask for plant light bulbs and they gave them to me but there is another name and I'm drawing a blank.
My Ott light is okay but I'm not jumping up and down over it. I would not have bought it but my husband found it at a garage sale.