Small round flangeless flat LED downlight with architectural appearance. LED module and optics are modular for ease of replacement. Output: 856 net lumens. Power Consumption: 18 watts. Efficacy: 48 net lumens/watt. Color Temperature: 2700K, 3000K or 4000K. CRI: 86. Center Beam. Life: 50,000 hours to 70 percent No UV rays. Dimmable to 10 percent with most standard incandescent dimmers. Minimum Waste: heat sink stays with fixture at end of LED module life. No mercury and ROHS compliant. 5 year Warranty.