Recessed Mounting for T-grid, sheet rock ceiling and 9/16 inch slot T-grid. Can be mounted end-to-end and ide-to-side. 20 ga. steel housing, 24 ga. Steel reflector. Baked on low gloss, white, powder coated acrylic finish. Available in 1x4, 2x2, and 2x4 inch fixture configurations. Louver shielding options are perforated, frosted acrylic or tannenbaum cross blades. T5, T5HO lamps (not by NEO-RAY). Consult factory for dimming and emergency options. UL Listed, C-ULListed.