In a suspended ceiling there are fixtures that will clip to the panels after connecting to the electrical supply. The fixtures are light enough to "sit" in the panel.
Recessed lighting requires a drop ceiling because the can, or where the light bulb sits, extends up into the space the ceiling. The fixture rim is flush with the ceiling.
In modern world ready made lightings are available at various range of prices. According to economic condition and place availability the light can be fitted in downstairs.
