The lights I have that are still CFL and not LED are all streaked/wide spectrum lighting with undefined lines.
Look at this perfectly sharp one!
Mine looks like this - even with an eyepiece spectroscope I got from eBay:
As you can see the CFL has smeared blue lines. =(
I'd love to do a "One-click" on Amazon to get a CFL that has the very defined lines of cheap phosphor and bad filtering!