In summary, XLamp MK-R Easy White LEDs are the next generation of price-performance for directional LED arrays. The MK-R delivers up to 200 lm/W, an industry milestone. It enables high efficacy, high lumen directional lighting systems. The MK-R is available in color temperatures from 2700 to 6500 K with minimum CRI options of 80 and 90. The MK-R LED is available in ANSI and EasyWhite binning.