I want to put lights inside our closets (96" x 24", with sliding doors)...attached to the header above the door, hardwired, with a switch outside the closet. Everything I see online is either battery operated or fluorescent. I'm not opposed to fluorescent, we have CFL's in all our lamps, but it doesn't seem like the best application for fluorescent lights. I want something that will be happy running for five to ten minutes at a time, a couple times a day.

Halogen lights seem like a good alternative. I like the idea of using a two or three bulb direction spotlight or short track light, so that I can aim the lights into different areas of the closet.

Has anyone done this or seen it done? Do you know if halogen lights fall under incandescent or fluorescent when it comes to code? And what does it mean when the say that an incandescant light must have a "closed lens"? The halogen light I am looking at does not protrude at all from the shade. Does that count?

Finally, does anyone have experience with LED lights in closets? Seen any that aren't battery operated?

If this wasn't challenging enough...check out my next question: Low Voltage Light Transformers - Magnetic or Electronic?

Thanks, in advance, for your help!

Halogen is the best. It has a very high CRI (color rendering index). Fluorescent bulbs are notoriously bad with their CRI. LEDs generally are not good either. Now, the Cree recessed lights have great CRIs. Not as good as halogen, but still in the 90%+ range.

If you're thinking of a track, and the clothes won't be affected by the heat, go with low voltage halogen.

As for transformer. They're both technically good. Fixtures with integral individual transformers are usually electronic.
Both have positives and negatives. It sort of depends on what your light fixture is.

Sorry for the vagueness on the second question.

My transformer question is actually a separate post, with more details on my dilemna...you know, in case you want to check that one out too. I could use all the help I can get.

(1) A surface-mounted or recessed incandescent luminaire
(fixture) with a completely enclosed lamp
(2) A surface-mounted or recessed fluorescent luminaire
(fixture)

Also, per 410.8(D), there are the following restrictions on location:

(1) Surface-mounted incandescent luminaires (fixtures) installed
on the wall above the door or on the ceiling,
provided there is a minimum clearance of 300 mm
(12 in.) between the luminaire (fixture) and the nearest
point of a storage space
(2) Surface-mounted fluorescent luminaires (fixtures) installed
on the wall above the door or on the ceiling,
provided there is a minimum clearance of 150 mm
(6 in.) between the luminaire (fixture) and the nearest
point of a storage space
(3) Recessed incandescent luminaires (fixtures) with a
completely enclosed lamp installed in the wall or the
ceiling, provided there is a minimum clearance of
150 mm (6 in.) between the luminaire (fixture) and the
nearest point of a storage space
(4) Recessed fluorescent luminaires (fixtures) installed in
the wall or the ceiling, provided there is a minimum
clearance of 150 mm (6 in.) between the luminaire
(fixture) and the nearest point of a storage space

I note that "storage space" is defined in 410.8(A).

I doubt that track lighting is considered "surface-mounted luminaires." In any case, it is rare for a track fixture to be "fully-enclosed."