I was looking at Waveform lighting LED strip ("Absolute series") to light my workspace and e-ink monitor. The 12 and 24v DC power supplies they offer are advertised as low ripple, but are not mentioned in mV. I do not feel very comfortable with that power supply since Waveform uses a relative definition of flicker-free.
I found some Mean Well power supplies in which the max ripple is specified at 120 or 240 mV. That seems high to me, but I do not know how much flicker that would produce. However, we know that even very small amounts of flicker can introduce strain. Here is a interesting post where someone has issue with flicker from LED powered from a Mean Well power supply.
Based on measurements from PSU reviews, I know that ATX power supplies can have very low 12v ripple, even under 10 mV. I have read that it is possible to run LED strip from an ATX power supply. Comments are mixed on whether this works or is a good idea. What do the electronically-oriented of the forum say? I appreciate your help.
Reading about this finally helped me understand how a "flicker-free" monitor could still flicker significantly, even when not using PWM for dimming.