Built to provide warm, ambient lighting with a slim, low-profile form, the Circulux 4 Adjustable Trim by is able to blend in seamlessly in a variety of modern living environments. Its body is comprised of a diecast aluminum material for its trim and heat sink, allowing the heat radiating from the energy-efficient LEDs to be properly dissipated ensuring consistent function. Mounting the fixture requires a space up to 4? inches. Shape: Round.