... High Power LED Spotlight 1. Cree/Bridgelux/Epistar 2. Factory, 100h aging testing 3. 2-3 years warranty 4. Certificated 4W LED Spotlight ... 3. About he quality of LED products:first,selecting the led chip,because led lighting is made of led chips,because the ... BridgeLux, Epistar chip, has the advantage of good quality and high brightness,(other brands of chips according to customers requirements ...