Extruded aluminum single piece housing. 2', 3' and 4' Radii available. Connects to straight runs with proprietary joiner design. Three standard lumen packages available. Efficacy up to 130 lm/W. Soft diffuse direct lighting. Textured powder coat finishes available in white, black and silver. Custom colors available upon request*. Approved for dry and damp locations. 0-10v dimming is standard. Dim to 1% of output current.