The Quintessence collection of recessed luminaires from Erco encompasses more than 350 products—including wallwashers for vertical illumination and fixtures with LEDs—all in square and round designs. The line includes many of Erco’s newest technologies, such as Spherolit reflectors and lenses, factory-encoded DALI gear, and four-channel varychrome technology for LED downlights with variable lighting color. Lamping options include metal halide lamps, low-voltage halogen lamps, high-pressure sodium vapor lamps, and CFLs. The Quintessence system allows luminaires with a range of different characteristics to be mounted in uniform mounting rings and frames without tools.