Hamilton Technology Metal Halide Lighting Fixtures are for reef aquariums. Please visit our Lighting Chart page to identify the best light for your particular reef aquarium.Features:One 175 watt 10K mogul base metal halide bulbTwo 96 watt compact fluorescent actinic bulbsDimensions: 36" x 11.5" x 6.5 "Glossy black painted aluminum housingAcrylic lensTwo cooling fansPolished aluminum reflectorRemote metal halide ballast with 10 foot cable and quick disconnectsRecommended Accessories:To keep the light cycle consistent, we highly recommend using a timer. To achieve the dawn/dusk effect we recommend the Coralife Aqualight Power Center Timer.Replacement Parts:We carry all the compact fluorescent replacement lamps (we recommend the Current USA lamps for Hamilton Fixtures), metal halide replacement lamps and many of the replacement partsNOTE: This item is drop-shipped directly from the manufacturer. We do not offer expedited shipping for this item.