Nora Lighting expands its Diamond Series of LED Retrofit Downlights with the introduction of a new 4-in. model (10 W). The Diamond Series now includes 4-, 5- and 6-in. (12 W) fixtures. Nora’s energy-saving Diamond Series is recommended for applications requiring high-lumen output and minimal light source identification. With just a 3.5-in. aperture, the Nora 4-in. LED downlight is UL-rated for 4-in. IC and non-IC housings and replaces inefficient incandescent light sources. The fixture can be installed in existing Nora (or other manufacturer) housings, as well as in new or renovation projects. It offers up to 50,000 hours of performance and is backed by a five-year limited Nora warranty.