Named in honor of the famous science fiction author, these sleek, ultramodern ceiling lights from the Asimov collection give your guests a glimpse of the future. The 4.5-inch round aluminum frame comes in a white finish with an acrylic lens. The 9-watt internal LED module maintains a uniform intensity producing up to 500 lumens with a CRI of 90 and a typical life of 50,000 hours. Available in two color temperatures of soft white light 3000K or bright, cool white light 4000K and includes a five-year warranty. Comes in a pack of six. Finish White Made of Aluminum Round 4.5-inch aluminum frame comes in a white finish with an acrylic lens 9-watt internal LED module maintains a uniform intensity producing up to 500 lumens with a CRI of 90 and a typical life of 50,000 hours Estimated yearly energy cost 1.08405 based on 3 hours/day, 11 cost depends on rates and use . Average life based on 3 hours per day is 50000 hours 50W INTEGRATED LED Bulb s Bulb Color Temp 3000K Bulb CRI 90 Bulb Lumens 500 Lamp Type LED LED Type HONGLI Voltage 120V Beam Angle 120 Lens Acrylic Style DOWNLIGHT Current 270mA Dimmable Yes Average Life 50000 Energy Star Yes For Use in Damp Locations Warranty Info 5 Overall Dimensions 4.5 W x 1 H Item Weight 0.66 lbs. Please note that this product is designed for use in the United States only 110 volt wiring , and may not work properly outside of the United States.