The Halo H457ICAT1E is an insulated ceiling, AIR TITE housing offering 120 volt dimming capability with many incandescent or electronic low voltage dimmers. Designed for use with EL4 series LED Gen2 Light Engines and TL4 LED Series Trims, the H457ICAT1E offers high quality downlighting along with high efficacy the result being great lighting and significant energy savings. Collar may be removed from plaster frame for junction box access. Consumes less than 14W.