The types of LED COB light sources can be classified in detail from three dimensions: packaging technology, application scenarios, and optical design, covering various packaging light sources such as COB, SMD, MCOB, as well as diverse optical structure light sources such as ring, strip, and coaxial.
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Classified by packaging technology, COB light source is a method of directly attaching multiple LED chips onto a metal substrate with high reflectivity. This packaging method minimizes the distance between chips and achieves high integration. Moreover, the metal substrate has excellent thermal conductivity, which can quickly dissipate the heat generated by the chip and has excellent heat dissipation performance. Therefore, it is particularly suitable for situations such as tube lights and spotlights that require high efficiency in heat dissipation and centralized lighting. It can maintain stable lighting effects during long-term use and reduce problems such as light decay caused by overheating.
SMD light sources are packaged using advanced surface mount technology. Its emission angle is wide, up to 120 ° -160 °, which means it can evenly emit light over a larger range, illuminating a wider area. At the same time, it has a very compact size, can be easily installed in limited space, and has high luminous efficiency, providing sufficient brightness with low power consumption. Often used in display screens and home lighting, it brings convenient and comfortable light and shadow effects to people’s lives. Whether watching TV screens or illuminating various corners of the room, it can play a good role.
As an upgraded version of COB light, MCOB (Multiple Chips on Board) light source provides more precise control and convergence of light through the clever design of multi optical cup structure, further improving light efficiency. This light source not only inherits the high integration and good heat dissipation performance of COB, but also significantly improves the utilization rate of light, making it an ideal choice for low-power lamps, such as some small desk lamps, wall lamps, etc., which can provide sufficient lighting while maximizing energy savings.
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In terms of optical structure, the ring light source performs well in three-dimensional information detection or shadow elimination with its unique circular arrangement of lamp beads. When applied to precision operations such as screw defect detection, the circular light source can uniformly illuminate the target object from various angles, making the surface details and defects of the object clear and visible, without shadows blocking key parts, thus ensuring the accuracy and reliability of detection.