Corelites Z3 recessed luminaire meets the demands of the new energy culture with superior lighting and energy performance. Its engineered optical system delivers luminaire efficiencies greater than 85 percent while maintaining a soft luminous glow for high visual comfort. Its unique light distribution fills the volume of space to ensure that vertical surfaces glow to create the perception of spaciousness. To further realize the Z3s series design potential, it is available with a complete palette of shielding options, and lamp options including T5,T8, LED and compact fluorescent. T1 1 inch Grid, Slot-Grid, 9/16 inch Tegular.