Designed to convert most recessed fluorescent 2x2 and 2x4 troffers and parabolics from T12 or T8 to more efficient T8, T5 or led technology. These kits provide everything required to enhance the performance and energy savings of your recessed fixture while minimizing labor, clean up and expense. Choice of highly polished mirrored reflector or enhanced white reflector, both designed to maximize output and efficiency. Kits include centering socket bars with snap in tabs for reflectors, appropriate instant start / program start sockets and tek screws for easy assembly. To easily include a specific ballast please add the appropriate ballast code. Kit installs with simple hand tools in minutes.