The PTPL-44-D-G Tech Zone Day-O-Lite’s line of direct linear product for recessed applications in suspended grid ceilings. Ideal for a wide variety of commercial applications requiring highly efficient LED in a linear, direct distribution format. PRFL-44-D-G Tech Zone is finely proportioned for versatility and creativity in modern applications. An ideal luminaire for open spaces and energy efficient applications where long duration operation is required. Compatible with Armstrong Tech Zone ceiling systems.