Quote Originally Posted by RoyalCake View Post
Thanks Zak. I've recently just been using afternoon light like you've said, mainly cause I'm too lazy to set the light box back up.
But one thing I noticed with my CFLs is I would get what I assume is 60 Hz lines on my screen and in the picture. But sometimes it wouldn't. Not sure if it's a faulty lamp or not. I'm using ones like yours.
In theory, CFLs shouldn't be subject to AC frequency noise. I'm pretty sure the phosphor coating inside the bulb doesn't have a really sharp on/off state -- they fade in and out (for values of fade that are fractions of a second).

LED bulbs are definitely instant on, instant off -- to the point where most are dimmed not by varying voltage but by cycling the power up over 100khz.

Got any pictures that show the banding you're talking about?