PRFL-44-D is Day-O-Lite’s premier line of direct, extruded linear product for surface installation. Ideal for a wide variety of commercial applications requiring highly efficient LED in a linear, direct distribution format.  PRFL-44-D is proportioned at 4″ x 4 1/2″ for versatility and creativity in modern applications. Simple architectural lines make it an ideal luminaire for open spaces and energy efficient applications where long duration operation is required.