The 18w Stellar Clone LED is the perfect replacement for a T5 fluorescent light fixture. 60% more efficient running off 18 watts, outputs less ambient heat, and throws higher intensity than comparable fluorescent light fixtures. The 9000k spectrum and balance of white, blue and red diodes for healthy rooting in clones. Daisy chain multiple strips together, easily hang in commonly used steel wire shelving with the included clips or use the integrated zip tie slot.