... the good aluminum with 70-80% good cooling effect. High quality power supply leading long lifespan. The downlight that adopts 9pcs ... Color Rendering Index (CRI): 73 (Cool White), 72(Warm White)7. Beam Angle: 120 degree -- Lens angle: 20/30 degrees ... applied to airports, hotels, homes, offices,schools, hospitals, display case lighting, under cabinet lighting, art lighting, boatlighting, fashion store, ...