The UltraLight Control System Digital tray for Ikelite, Olympus housings for housings with two screw holes for attaching on the bottom of Housings for this tray Ikelite small and medium with female threads on the bottom. The tray is also suitable for olympus Pen housing, PT-EP01, PT-E05, PT-E06, Fisheye Fix housings, RecSea housings with two threaded holes in the housing. If your housing only has one threaded hole then you need the TR-D tray.
The tray will accept either the AC-H handle or the TR-DHB handle. Use the TR-DUP or TR-DUPL on the right side to make it a double tray for dual strobes. A second handle, AC-H can be added or the AD-3816-2 ball for the base of the arm for the second strobe.