Cheap Christmas LEDs with no electronics look so awful because they strobe at 60Hz and are completely off for a full half-cycle (while the LEDs are reverse-biased).
I can't speak for you but I find the full-wave rectified ones not to be a problem. Of course the difference isn't just the doubled frequency, it's also a much higher duty cycle.
I can't speak for you but I find the full-wave rectified ones not to be a problem. Of course the difference isn't just the doubled frequency, it's also a much higher duty cycle.