A mounting unit (10) for mounting an electrical component (16) to a panel has a first member (12) arranged to engage a first side of said panel and a second member (14) arranged to engage the first member and a second, opposite side of said panel, so as to secure the first and second members to opposite sides of the panel through a hole in the panel. The first and second members define a space for receiving the electrical component. The mounting unit is particularly suitable for mounting the electrical component to a ceiling tile.