This ceiling light features Interlaced Optics technology, cleverly redistributing the light to enhance your overall lighting experience. This fixture's lens has a pyramid micro-structure that diffuses and evenly distributes the light, making it easier on the eyes. CL200: 17W: 320mm diameter, 1500 lumens 20W: 390mm diameter, 1900 lumens 24W: 390mm diameter, 2100 lumens