Initially, the warehouse for the Tampa Thrift Store was in much need of adequate lighting.  Also, the existing T12 fixtures were not producing the light they wanted. So, the 8′ 2-lamp cool white T12 strip fixtures in the open floor area were retrofitted to 8′ 4-lamp tandem high vision T8 LED fixtures.  Plus, the 8′ 2-lamp cool white T12 strip fixtures along the perimeter were retrofitted to 8′ 2-lamp high vision 2-lamp T8 LED fixtures. As a result, the comments were along the lines of “It’s never been so bright in here!” Finally, there was now a nice even light throughout the warehouse.