Marquis Dual Lamp T5 High Output fixtures combine powerful lighting; internal ballasts and timers; and a single no-mess power cord into one stylish and compact fixture. The powerful; yet understated fixture provides the necessary lighting requirements for your saltwater or reef marine inhabitants; without taking away from the natural beauty of your aquarium! The 36 in. Marquis Marine comes equipped with two lamps: (1) 39 watt 10;000K T5HO and (1) 39 watt Actinic Blue T5HO. The lamps are selected to bring out the stunning blue; purple and violet colors of your fish and to provide your coral and live rock with the light spectrum they receive in their natural habitat. Each lamp also has individual German made reflectors to better direct light downward into your aquarium. The internal timer allows you to control when the lights come on in the morning and go out at night; without the clutter of a separate timer. Includes adjustable aquarium frame mounts that fit aquariums from 35.2 in. to 37.2 in. wide. For additional information; read our Aquarium Lighting Guides.