EHEIM Power LED Daylight and Actinic Aquarium Light High Energy efficiency, long service life of 5 hours Comes with adjustable mounting clamps Fits rimless and rimmed aquariums up to 3/4" thickness Power is supplied through the light track Horizontally and vertically adjustable Promotes color rendition and the growth of corals Corals appear in the most vivid colors due to the stimulation of their inherent fluorescence