QILSTE product-0.5W-P3528 TOP LED white light series products completed the LM-80-2008 standard 6000-hour test on March 15, 2014 (test completion date) by the third-party authoritative testing and certification agency TUV Laboratory (TUV SUD)

In this test, the luminous flux maintenance rate of 0.5W-P3528 white light products for 6000 hours is 98.66%@55℃, 98.96%@85℃, 97.89%@100℃ respectively. According to the life estimation method specified in IES TM-21, the estimated life reaches (50,000~60,000) hours, which means that the life of this product can be advertised to be greater than 36,000 hours.

LM-80 is an IESNA (Illuminating Engineering Society of North America) approved lumen maintenance (LED life) standard. The LM-80 test mainly focuses on the components of the light source, including LED packages, arrays and modules, and calculates the life of the components based on this data. Manufacturers of LED lamps, light engines and LED lamps must be able to obtain the "Energy Star" certification issued by the US Environmental Protection Agency, and the devices used in their products must meet the requirements of the LM-80 standard test.