The 21W LEDme Impulse Track Luminaires are made of solid die-cast aluminum and come in various color temperatures and optics. With a CRI of 80, the 21W LEDme delivers 950 lumens at 2700K; 1,020 lumens at 3000K; 1,010 lumens at 3500K; and 1,030 lumens at 4000K. It also comes with two different types of reflector optics, including Spot (28 degree) and Flood (45 degree) beam spreads. •