Quote Originally Posted by wizard69 View Post
Pretty neat. What is surprising is the technology is already out of date. The factories likely barely paid for themselves before LED took over.
Yup, AFAIK, CFL is/was essentially a transitional technology (are there still remaining niche uses for it?). The light quality is too jarring for residential use, and its popularity was at least in part attributed to questionable enviro-friendly promotional tactics known as Greenwashing.