Suspended ceilings lend themselves to a variety of lighting solutions: surface mounted fixtures, recessed lighting fixtures, recessed fluorescent units sized to fit the grid, or even a luminous ceiling.
One type of fluorescent fixture substitutes for a ceiling panel. Simply drop the unit into place and make the electrical hook-up. Another stands on brackets above the grid.
This is the type described in this article. Remember that fixtures add weight — so be sure to add extra hanger wires to carry the load.
Install light fixtures before panels. Some types of lighting for suspended ceilings include a special bracket that clamp onto the main tees.
A tab-and-slot system lets you adjust the distance between a fixture’s tubes and it’s plastic diffuser panel.
For the diffusers, you can select clear, translucent white, or egg-crate styles. They rest on the grid like any other panel.