COB (Chip-on-Board) lights are a type of LED light that features multiple LED chips packed closely together on a circuit board. This design creates a uniform and smooth light source that is often described as being similar to natural daylight. COB lights are known for their high lumen output, energy efficiency, and long lifespan. They are also relatively compact and lightweight, making them a popular choice for a variety of applications, including photography, videography, and general household lighting.