The SB-CD  Power and color selectable series LED Luminaries, utilizing an aluminum frame, 0.31″ ultrathin side emitting design and high transmittance light guide plate, provides uniform light distribution with color temperature consistency. All size options are both energy efficient and aesthetically pleasing. The SB-CD Power and color selectable series have 4 Wattage and 4 Color (3000k, 3500k, 4000k, 5000k) all in one light fixture easily and quickly to select any color and any wattage by move the dip switch, also help you reduce stock! The SB-CD LED series was designed for offices, hallways, general area lighting, conference rooms and lobbies.