Built with heavy duty pre-galvanized steel and lined with high purity aluminum, the Radiant Reflector is designed to provide efficient, quality lighting and years of dependable performance. The Radiant Reflector 6-inch AC unit includes two built-in 6-inch flanges for optional fan attachment. With a fan attached, the tunnel-like interior of the unit allows for complete airflow and significant cooling. This provides a greater degree of control over growing room temperatures and allows plants to be spaced closer together, making the Radiant Reflector an excellent choice for hotter growing areas.