Episode Details

One thousand hours of life, ten to seventeen lumens per watt, and a hoarding panic that pushed German bulb sales up 150% before the EU ban. This episode traces the full arc of electric lighting: incandescent, halogen, compact fluorescent, and the semiconductor junction that changed everything. Along the way: why the filament sat frozen in place for sixty years, why CFLs failed culturally despite hitting their efficiency targets, and how three researchers finally got gallium nitride to produce usable blue light — the missing piece that made white LEDs possible. We also cover the regulatory timeline across the EU, US, China, and India, the exemptions that keep filament bulbs legal in fridges and ovens, and a persistent piece of misinformation about the US ban being lifted. If you've ever wondered whether we're near the end of lighting innovation, the answer is no — and the reasons why are more interesting than the ladder itself. Episode #152438 — open it directly at myweirdprompts.com/152438