The H1 was designed with a 1” lens regress to compliment the perimeter reveal of T-Bar system aesthetics. Extruded aluminum center lens rails provide structural rigidity and a polished look to the 1/2” regressed center strip detail. The HTD™ high-performance polycarbonate opal lens is an impressive 93% transmissive. Optimized surface texture plus advanced diffusing additives eliminate LED hotspots.