An assembly includes first and second light emitting diode (LED) lighting fixtures. Each LED lighting fixture includes an enclosure, a heat sink disposed in the enclosure, a LED array mounted on the heat sink, and a connector attached to a first end of the enclosure. The connector of the first LED lighting fixture is a male connector, and the connector of the second LED lighting fixture is a female connector. The male connector is configured to directly mate with the female connector without the use of tools.