The new Class R1 Lensed Series by Corelite offers an ultra shallow recessed design, ideal for plenum-restricted applications and low-ceiling environments. The Class R1 Series has been optically engineered to provide low-brightness ambient illumination and to accommodate a variety of innovative shielding options. R1WL is the lensed model. The dedicated T5 design of the Class R1 Series offers superior lumens per watt when compared with traditional 3T8 or twin tube luminaires.