Uploaded September 2024 | Updated September 2026, 1 day ago

---

Physics Explanation of How Light Emitting Diode (LED) Light bulbs operate. This video also includes a description of why Blue LEDs were so hard to come up with and what next steps are being taken with LEDs for future application.

Affiliate link for "The Way Things Work" by David Macaulay -- amzn.to/3WnRDC0