Abstract: A portable lighting fixture assembly (10) for detachably coupling to a frame member of a partition or other such structural system is provided. The portable lighting fixture assembly (10) generally comprises a base portion (100) and a lighting portion (200) coupled thereto for illuminating a display area defined by the partition system. The base portion (100) includes a deck member (110) and an elongate coupling member (20) extending transversely from that deck member (110) for telescopically engaging the frame member. The lighting portion (200) includes at least one lighting fixture (210) having an extension arm (212) projecting from the deck member (110). Each lighting fixture (210) terminates at a lighting source (216) coupled to a free end (214) of its extension arm (212). The portable lighting fixture assembly (10) is thereby securely seated on the frame member to illuminate the display area.