Versa Kit 3-output, 3-CCT selectable, Back-Lit panel retrofit kit converts 2X2 and 2X4 fluorescent troffers to the most current LED technology. The panel kits increase the efficacy to 125 lpW for Back-Lit versus 100 lpW for the previous edge-lit panels. The panels allow 3-outputs and 3-CCTs to be selected, per model.