1.Certification: CE, RoHS. FCC. 2.LED factory 3.Energy-saving light 4.Good quality 5.Lifespan:50000H Features:1. ... material, be oxidated, to enhance the beauty of its appearance. U efficient light guide plate, heighten the luminous intensity.2. ... Where need high intensity and save energy, such as hotel, meeting room, factory, office, house, institution, school, hospital, etc. Corridor down light