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COB technology has significant advantages in the field of commercial lighting. Dr. Xie Zhiguo, deputy director of the R&D Department of the White Light Device Division, pointed out that COB technology has developed rapidly in the commercial lighting field this year.
The difference between high-power COB light sources and LED integrated light sources is mainly reflected in the LED chips used. LED integrated light sources usually use large-size, high-power LED chips of more than 1 watt, and the chip size is generally more than 30MIL. The high-power COB light source is different. It can customize the light area and dimensions according to the product's appearance and structure design.
In terms of application fields, LED integrated light sources are mainly used to make outdoor lamps such as LED floodlights and LED street lamps, and their maximum wattage per unit can reach 500W. In contrast, COB light sources are mainly used in indoor lamps, such as LED downlights, track lights, ceiling lights, etc., and their maximum wattage per unit does not exceed 50W. COB light sources usually use low-power LED chips of less than 1 watt, but there are also a small number of high-power LED chips of more than 1 watt.
In order to avoid the influence of the light source on the thermocouple, it is recommended to use an infrared thermal imager for temperature measurement. Infrared thermal imaging cameras have the advantages of fast response time, non-contact, no power outage, fast scanning, etc., and can display the temperature distribution of the object to be measured in real time. The principle of infrared temperature measurement is based on the Stefan-Boltzmann theorem, and its formula is as follows. COB light source has the following advantages: 1. Low cost and easy to use; 2. Electrical stability, circuit design, optical design, and heat dissipation design are scientific and reasonable; 3. High thermal lumen maintenance rate.
High Power COB Light Source The above is our detailed introduction to the basic knowledge of COB light source. We hope that through sharing, everyone can better understand the application of COB light sources in the field of LED lighting. It specializes in display lighting applications and has extremely strict requirements on product color rendering index, illumination, color temperature, light efficiency, etc. Since 2013, Shouzhuo has fully adopted COB light sources in LED track lights, bold lamps and other display lighting products, effectively establishing technological advantages, reducing accessory costs, and providing users with cost-effective LED lighting products. COB light source, that is, high-power integrated surface light source, its biggest features are low cost, easy to use, high heat dissipation and luminous efficiency, so it is increasingly recognized by the market. At present, most lighting products use COB light sources, which not only have excellent lighting effects, but are also energy-saving and efficient.