693 Series of 6-Inch aperture baffles with self-flange. The 693 series baffles may be used in most standard height 6-Inch aperture recessed housings with ML56 LED Light Modules. 693 Series LED Trims are an integral element in the Halo ML56 LED Downlighting System. ML56 LED System is a series of modular LED Light Modules for use with dedicated 5” or 6” ML56 LED trims. The ML56 LED trims in 5" and 6” aperture sizes are designed to fit Halo, All-Pro and others 5” or 6” recessed housings.