I just wanted to control a string of plug-in leds rather than a usb-powered appliance, so cannibalizing the inline dimmer module from a Sylvania 72569 under-cabinet light worked perfectly. No stacked power adapters in order to get HE control.
And for $16 delivered!!
I've tested it with a 6vdc and a 12vdc power adapter. The dimmer and on-off work as expected with either voltage. I cut off the micro usb end and converted it to a dc barrel connector using the red (+) and the blue (-) wires .
