DMX IN & DMX OUT: A pair of 3-pin XLR chassis connectors used to transmit DMX512 signal data from a lighting controller or chain multiple fixtures together in a master/slave sequence.POWER IN (White / Grey): A locking PowerCON-compatible input socket used to deliver main AC power (typically auto-ranging between 110V–240V AC).POWER OUT (Blue): A locking PowerCON-compatible output socket designed for daisy-chaining power directly to adjacent lighting fixtures to minimize cabling.Power Switch: A red rocker switch that controls the primary power state of the fixture.FUSE Cap: A screw-in fuse holder providing overcurrent protection for the internal ballasts, motors, and electronics