Special design, high-end surface treatment, adjustable angle, CREE COB led chip, no glare, etc, all these advantages are describing DUKE Pollux series led downlight. From 2.5inch to 5.5inch ceiling hole size, 7w to 35w power available, it was widely used in various stores, shopping mall, library, hotels, restaurant, airport, etc. This is 20w led downlight, with 5.5 inch diameter and 4.5 inch ceiling cutting size.