Dimensions: 48.50" x 8.4" x 4.5" without legs (when used with the included legs the light is 6.75" tall, 8.4" front to back, and can adjust to lengths up to 49") Includes: Two 65 Watt Dual Actinic Lamps (460nm/420nm) and two 65 Watt Dual Daylight Lamps (10,000K/6700K)Four lunar lights Each set of compact fluorescent lamps have their own power cord and switch to enable dawn/dusk lighting (one switch and power cord for the Daylight lamps, one switch and cord for the Actinic lamps). The lunar lights have their own power cords. The fan is wired into the switch and cord for one set of compact fluorescent bulbs. Black powder coated extruded aluminum housing One 3" fan for ventilation Adjustable Docking Mounts (legs) for elevating above aquarium. Easily removable acrylic lens.