Cooper Industries, Houston, has purchased Irvine, Calif.-based Illumination Management Solutions, Inc. (IMS), a manufacturer of specialized optics and systems for light-emitting diode (LED) fixtures. Terms of the transaction were not disclosed. IMS designs and manufactures LED systems and fixtures for a variety of lighting applications. Its LightBAR technology allows for greatly extended design life and performance in roadway and infrastructure lighting as well as safety applications in oil and gas, emergency lighting and other industrial applications. Cooper’s other acquisitions in the LED market include Io Lighting and UK-based Clarity Lighting.