The I-48-EM-A provides remote-mounting capability of the emergency ballast. The unit is provided with 3/8" flex for wiring to the fixture or ballast compartment. The test switch, charge light, and unit battery connector are installed in a standard switch box, which is connected to the I-48-EM-A via 3/8" flex. The switch box mounts within the ceiling adjacent to the fixture while the I-48-EM-A is designed to be mounted on the fixture or in the ceiling adjacent to the fixture.