... sources: Applied with the highest-level Epistar/Bridgelux LED, low brightness attenuation and lifespan is over 30000hrs.4.Environmental protection ... is using BridgeLux, Epistar chip, has the advantage of good quality and high brightness,(other brands of chips according to customers requirements) 4 ... . 6. In addition to the above thing affect the quality of led lights,the most important thing is the led ...