LEONLITE 2 PACK 8.5W(50W Equiv.) Integrated CRI90+ LED Track Light Head, Dimmable 38&deg; Spotlight Track Light, 500lm ENERGY STAR ETL-Listed for Wall Art Exhibition Retail Lighting, 2700K Soft White Compatible with H type 3-wire-1 circuit track system and Halo light circuit CRI 90+ outstanding color rendering, shows more precise, natural and realistic light color. No UV, IR and fading, safe for artworks Dim smoothly from 10% - 100%, flicker-free and humming free. Compatible with most Leviton and Lutron dimmers ENERGY STAR certified for energy efficiency, 8.5W LED track light equivalent to 50W halogen, cost only 1.02/year Integrated Seoul LEDs, 40000 hours lifespan, 38 beam angle, 5 years warranty