You can support this channel on Patreon! Link below While the CFL is pretty much done being a thing these days, it was a really great invention for saving energy. But some people claimed they caused them headaches. In this video, I explore the reason that fluorescent light can indeed cause headaches or eyestrain in sensitive people, and I explain why that wasn't an issue with the CFL. Then we explore the modern LED bulb and how it actually is bringing the cause of this flicker back. Technology Connections is a YouTube channel devoted to exploring how stuff works, and how our technological ancestors managed to push technology to where it is today. You can support this channel on Patreon, here: https://www.patreon.com/technologyconnections Please consider subscribing if you haven't already!