Glide Glass Up and Downlight LED Dynamic/Tunable White Linear Suspension End-Feed features a Diffused Opaque Lens with a 100° beam spread down light and 60° beam spread as up light using the latest in LED Technology Dynamic/Tunable White from 2000K to 4000K. The Glide Dynamic/Tunable White is available in 8 standard sizes 36", 48", 60", 72", 84", 96", 108", 120". 3 glass finishes. Optical White or Black Louvers. Both up and down lights come on at the same time, control dimming and color temperature separately. Fixture includes a 5 year pro-rated warranty.