Questions about modifications to AliExpress SMPS units

[Johnny B Good]

 Looks like you'd placed the positive rail capacitor backwards! The positive terminals of both caps are commoned to the zero volt rail.

 Oh, and btw do you happen to know why your YT video comes up as "Your browser can't play this video.". I'm seeing this "error" message more and more frequently in Opera these days.

 I used to fire up Firefox and paste in the offending page's url. This works but since such videos are so badly infested with adverts (and often "Click Bait" to boot), I no longer bother any more, electing to close the tab instead and view the rest of YT's selection on the original page.

 I always open any videos of interest in a separate tab - that stops YT from "rearranging the video list" after watching one of a few possible videos of interest. I assume this is simply a ploy by YT to randomly shuffle the list forcing me to scroll around in order to find the next video or two that had also piqued my interest on the original page.