I heartily recommend this product. I am using existing wiring and a wall switch dimmer for a length of white LED strip light. I had tried two different types of power sources from another manufacturer and in both cases I suffered with line current-related 120Hz flicker – as in visible jitteriness when objects under the light are in motion and as indicated by dark bands in a smartphone camera viewer. Results were the same with either a dimmer switch or a standard on/off switch. I was fortunate to get in touch with Josh at Waveform Lighting and I became aware of how unusual it is to find a wall switch dimmable power supply that does not pass along flicker. Then I installed Waveform’s Centric Series Flicker-Free Dimmable Power Supply and the results are perfect. No more visible or smartphone-indicated flicker. Just good solid pleasing light with wide range of smooth dimming. Thanks Josh and all the good folks at Waveform!