The first generation of COB products is positioned at lower power COB products, such as LB015/LB016. This product mainly uses an aluminum substrate with an insulating layer. Due to the limitation of heat dissipation of the insulating layer, the power can reach up to 10W. Since then, COB products have been opened. Road to development.
The second generation of COB technology
In 2009, COB was discovered and applied to lamps with small design space or secondary optical products that require overall optical design. In order to break through the thermal conductivity problem, a ceramic substrate COB appeared. Due to the rapid development of ceramic substrates, the thermal conductivity and insulation properties of ceramics are far superior to ordinary insulating aluminum substrates, so ceramic COB has become popular, and international companies are mainly represented by Japanese companies. The second generation of COB introduced the circuit design of ceramic substrates, realized the concept of ceramic COB packaging, and began the diversified development of COB products. This generation of products is mainly represented by LB019.
Third-generation COB technology
In 2011, German Ann Aluminum began to promote in mainland China. This high-reflectivity aluminum substrate was quickly favored by COB light sources. Through this pedal, a leap in light efficiency and quality has been achieved, allowing COB products to officially enter The first year of the lighting century. Seizing the opportunity to develop the third-generation COB product---LM series, the company strongly increased its COB production capacity investment and quickly occupied the domestic COB lighting market, prompting the soaring of COB products in mainland China, and ranking in the forefront of the high-tech industry research and research appraisal. Products still occupy an extremely important market share.
Fourth generation COB technology
As the harsh environmental requirements of outdoor lighting, traditional integrated modules have slowly exposed various quality hidden dangers, such as the combination between PPA and copper, the mismatch of thermal expansion, and the yellowing of PPA at high temperatures. The emergence of various problems will naturally cause drastic changes in the outdoor lighting market. The fourth generation-outdoor lighting-COB-LT series came into being. It not only perfectly solved the hidden danger of dead light caused by cold and heat shock, but also showed perfect performance under light and high temperature. This product won the Golden Globe Award in 2013 . At present, the LT series is still the best choice for many customers in the field of outdoor lighting.
