The Halo surface LED downlight (SLD) incorporates WaveStream™ technology to create an ultra-low profile surface mounting luminaire with the performance and look of a traditional downlight. SLD4 (4 in) is designed for installation in many standard and fire-rated 3-1/2 in and 4 in round or octagon junction boxes. Supply wire adapter with LED quick wiring connector included. Suitable for residential or commercial installations. Ideal for closets, storage areas, attics and basements. Compliant with NFPA® 70, NEC section 410.16 (A) (3) and 410.16 (C)(5).