I was considering to install LED strips in my basement for edge lighting. Now you're talking about a flicker and I don't like that.
I assume (know what they say about assume) "real" LED lights use full-wave rectification. If not and flicker is a problem you can always add an external full wave bridge (FWB) to reduce flicker. This causes the LED to be on during both half-cycles rather than just one. This will increase power consumption a little but unless the design is incredibly marginal should not be a problem.
So basically the LEDs themselves aren't a problem, it's the AC/DC converter that needs to be modified/upgraded to avoid flickering?
That's reassuring. Those 16' (5 meters) strips of LEDs are so cheap. I could light all the basement with LED and dimming capacity for less than 300$.
I've used quite a few of those LED strips, and all of them ran on either 12v or 5v DC. With DC, there is 0 flicker as they never turn "off" like they do with a half or even full (without filtering caps) wave rectifier. That is until you introduce dimming: depending on the quality of the dimmer, you may very well get flicker when dimmed (even if you can't see it a video camera definitely will).