I saw a LED assembly some time ago that consisted of two red LEDs in parallel, a 3/8" diameter "bump" inline with the red & black wire with a black & white wire out of that. The bump was about 1" long and covered in heat shrink. The point was to run the two LEDs off 110VAC. I don't know who made it, or even what country the assembly come from. The point to all this, is to fire two red LEDs at an absolute minimum cost from 110VAC. Wall-warts cost a lot.
Any ideas?
Thanks in advance!