Cree: Flicker happens. But does it have to?

May 20, 2016 // By Cree
Nearly all AC-powered traditional light sources exhibit some degree of periodic modulation or flicker. The effects of undesired flicker from artificial light sources have been a persistent problem, going back as far as the 19th century when gas lamps became widespread. This article presents results of testing performed on numerous solid-state lighting (SSL) luminaires, showing the amount of flicker found in various types of these luminaires; and suggests some measures that enable lighting designers to minimize flicker in SSL-based lighting products.