Recently, Shenzhen Liyang Optoelectronics Co., LTD. (referred to as Liyang Shares) 5050 products have obtained the third-party IES LM-80 12000 hours test report approved by the United States Environmental Protection Administration (EPA). LM-80 is a test method for the lumen maintenance rate of LED light source, is an internationally recognized important evaluation standard for the quality of LED light source, LED light engine and lamp manufacturers to be able to obtain the "Energy Star" certification issued by EPA, the LED light source used in its products must meet the requirements of LM-80 test.

In this test, the lumen maintenance rate of Liyang 5050 products for 12,000 hours is 95.22% at 54.3℃ for 12,000 hours, 94.89% at 84.4℃ for 12,000 hours, and 94.48% at 104.2℃ for 12,000 hours, respectively, which shows the ultra-low light decline of Liyang 5050 products. According to TM-21 life estimation method, at 200mA driving current, the predicted life of L70 at 55℃, 85℃ and 105℃ is 115000 hours, 115000 hours and 101000 hours, respectively. The test results show that Liyang 5050 products have good service life.

In addition, Liyang 5050 products also have the advantages of high light efficiency and high reliability, and its light efficiency can reach 230LM/W, which can be widely used in commercial lighting, landscape lighting, outdoor lighting and other fields. Up to now, Liyang Shares have inverted integrated COB full series, SMD series products to obtain LM-80 test reports.

All along, Liyang shares attach great importance to technology research and development and product quality construction, its self-developed white LED light source in reliability, light color uniformity, color rendering, mass production consistency and other aspects are in the industry leading level, and has a number of patent protection. In the future, we will continue to take customer satisfaction as our goal. We are willing to cooperate with old and new friends at home and abroad to seek common development!

Excerpts from the test report are as follows: