6 lenses: 2 regress cube & 1 regress curve, 2 drop cube & 1 drop curve, Create ceiling topography with regressed and drop lens options, Regress lens provides optical cut off w/ smooth lens for reduced glare, Extruded aluminum channels form rigid housing for maximum durability, Extruded channel allows field conversion (regress or drop arrangement), Surface or suspension mounting available, High performance efficacy up to 133 lm/W, Flexible – recessed, drywall, surface and suspension mount, Wireless control options available without sacrificing aesthetics