LED panel lights feature ultra-thin profile, uniform light output, energy efficiency and long service life, and have become mainstream recessed lighting products for commercial and residential applications. Among them, 3 Inch Mini LED Panel Light is a popular segmented product. Thanks to its compact size, it fits small ceiling cutouts and is widely used in corridors, entryways, shop compartments, auxiliary office lighting and other scenarios.1. Classification & Structure of LED Panel LightsL