Complete your winter wonderland with the shimmer of diamond white light! Cool white OptiCore bulbs featuring SMD LED technology emit vibrant, radiating light and last even longer than traditional LEDs while still maintaining the virtually unbreakable, fade resistant, energy efficient benefits you love. Our cool white is true to hue, so you can expect consistent pure white color from the first bulb to the last! Hang cool white C9 OptiCore LED bulbs alone or add a vibrant accent bulb in red or blue to customize your outdoor design.