Recessed grid 8" on center. Use the DFCL for hard ceilings, 7.5W maximum LED MR16 reading light, with full rotation and swivel, Choose from 3 illumination levels for the ambient exam function, IP65 optional for dusts and water ingress protection, NSF listing and anti-microbial finish for sterile environments, Amber night light and several white color temperatures available, Low voltage relay available for pillow switch control, Emergency battery also available