57.3 is an arrangement of 3 pendants designed to be composed in atmospheric configurations.
The round, white canopy is 6" / 152 mm in diameter and 1.3" / 32 mm deep. The pendants come standard with 10' / 3 m of coaxial cable. Additional cable lengths are available in increments of 10' / 3 m, up to a maximum of 120' / 36 m in special applications.