Ocean Light T5 is fine and elegant, black color, manufactured powdered aluminum, hinged. With 4, 6 or 8 tubes incorporate fans to cool the system, voltage of 6 V and bearing long duration. Two mounting options: Using steel cable hanger to the ceiling or resting on theedge of the aquarium by plastic fasteners. Steel wire, plastic fasteners and glue stick Aquaseal special included. T5 Fluorescent tubes not included.