When you need to contain a volume of various wires and cables in an easy-to-install design, this raceway is the perfect choice. Spacious interior is ideal for organizing power and telecommunications in a typical home office setting. Paintable and stainable. This Circular Fixture Box is for bringing power to a light fixture, ceiling fan, smoke detector or other round based fixtures. For bringing power to a light fixture, ceiling fan, smoke detector or other round based fixtures. (Not a mounting bracket. Ceiling fans and fixtures over 10 pounds must be mounted independently from circular fixture box.