Abstract: Light fixture assemblies include a connector circuit board, light emitting diode (LED) printed circuit boards (PCBs), and an LED driver circuit. The connector board includes first LED PCB connectors and a first LED driver connector. The LED PCBs include second LED PCB connectors configured to connect to the first LED PCB connectors. The LED driver circuit includes a second LED driver connector configured to connect to the first LED driver connector. The first LED PCB connectors may include two or more first LED PCB connectors. Methods of assembling light fixtures include placing LED circuit boards including LED circuit board connectors on support structures, respectively, connecting connectors of a connector circuit board to the LED circuit board connectors, respectively, placing an end housing over the connector circuit board, and affixing the end housing to the support structures.