What are the advantages of COB packaging?

Advantages of COB packaging over traditional SMD packaging With the continuous progress of solid-state lighting technology, COB(chip-on-board) packaging technology has been paid more and more attention. COB light source has been widely used in indoor and outdoor lighting, such as downlights, bulb lights, guide lights, spotlights, street lights, industrial lights and other commercial lighting products and outdoor lighting, because of its low thermal resistance, high luminous flux density and uniform light emission.

This paper introduces the advantages of crescent-shaped photoelectric COB package compared with traditional LED package, and compares it from five aspects: manufacturing efficiency, low thermal resistance, light quality, application, electrical stability and cost, so as to illustrate the dominant position of COB package in the future development of LED lighting.