Reply #22: The old ones only had one frequency of light

[Nevernose]

If you peruse Home Depot, for instance, you can find different bulbs with different light qualities. The brights work really well for reading, say on the nightstand. The regular ones work well for hall lights, porch lights, closet lights, garage lights living room tables, that sort of thing. They're usually equally priced now, too (the brights used to be Internet only and cost three times as much).

I think the difference between the two is the amount of blue in the spectrum presented.

Also, I have incredibly bad eyesight. You'll probably need to buy one size larger than normal if your eyes are half as bad as mine. If you'd normally use a 75 watt bulb in a spot, for instance, use a CFL that imitates a 100 watt bulb.