A new event, called a Lighting PlugFest, allowed OEM vendors of LED lamps, fixtures, transformers, and dimmers to bring their existing and new products to a booth to test them for interoperability with other vendors' products. Lighting manufacturer Soraa managed and ran the tests using a custom-built testing panel. One of the greatest hurdles to the adoption of LED lighting today is the incompatibility between LED light sources and the installed base of legacy control equipment and dimmers, which are predominantly designed for incandescent, halogen, or fluorescent lamps. Additionally, Soraa recently introduced the industry's first fixture validation program, allowing LED fixture/lamp combinations to be validated for mechanical, thermal, and electrical compatibility.