There's two things which determine the quality of a light source that's claiming to be "daylight". First the color temp, daylight falls in the 6500K range, and that's exactly the number you want for a video display. The other is CRI (Color Rendition Index), the sun gets a CRI of 100, because that's the reference. It's basically a measure of how complete the spectrum produced by the bulb is. Good bulbs are just above 90, excellent in the mid-90s, and crazy expensive in the high-90s.
If you can find a low-lumen, fluorescent bulb with a color temp of 6500K, and a CRI over 90, you'd be in good shape. If you just want to get an idea of what the light would bring to your display, go with any daylight CFL. But at $60 for a 10,000 hour bulb, plus fixture, the
Ideal-Lume Standard is a great deal.
