US Energy Sciences KPG-02B04-EA 2 x 4 Ft 2 Lamp T8 18 Cell Parabolic Lens MIRO4 Mirror Aluminum Reflector Troffer Drop In Retrofit Kit. Reflector kits are ideal for increasing fixture light output and saving energy. This kit is made for an existing 2, 3, or 4 lamp 2x4ft T12 recessed lighting fixture and includes brackets and sockets to fit two 48 fluorescent lamps and one ballast. The reflector is made of MIRO4 mirror aluminum, producing 95% reflectivity of light output from the fixture. Comes with all hardware for an easy, direct fit installation. 68% energy savings when converting your current 4-Lamp T12 fixture to this kit paired with 2 32W T8 lamps and a 2-Lamp T8 ballast!