A fluorescent lighting assembly (2) includes a ballast lampholder subassembly (4) located at one end of a troffer (80) and at least one lampholder connector (50) located at the opposite end. The ballast lampholder subassembly (4) includes ballast circuitry connected to fluorescent lamp terminals (17)...http://www.google.co.uk/patents/US6217190?utm_source=gb-gplus-sharePatent US6217190 - Lighting assembly for multiple fluorescent lamps
