Researchers Solve the Mystery of Efficiency Droop in LEDs

The ordinary light bulb is an innovation so extraordinary that a sudden brilliant idea is called “a light bulb moment.” Credit for inventing the first incandescent-style light bulb often goes to Thomas Edison, but even that wasn’t a light bulb moment. In fact, his patent for an improved electric light came after 75 years of hard work by several scientists and engineers, all scrambling to find the best way to run an electrical current through a filament and get it to glow.