In this engaging conversation, Jeffrey Lee, Ph.D., Chief Product Officer at Fiilex and expert in LED technology, shares his fascinating journey from physics to film lighting. He explains how color is created in LED fixtures using semiconductor materials and phosphors, and the challenges of spectral spikes in color output. The discussion covers the evolution of LED technology, practical on-set implications of aging lights, and the engineering hurdles of making compact, powerful LEDs. Jeffrey even teases future innovations, like larger tiled LED sources and potential laser technologies.