RSN1GPH20120 (3P20184) Fluorescent eBallast for 1 GPH212T5 thru GPH463T5, GU22-22T5 or TUV 18W PL-L Lamps, Preheat Rapid Start, 120Vac, 50-60Hz, Normal Power Factor Replaces the following Robertson Magnetic Ballasts NESGPH287110P/A, NESGPH287P/E NESGPH287P/A and /B,SGPH2871105/A,SSGPH28711550 /A,SSGPH2875/A,SSGPH287P/I/AF/AJ/AM SSGPH287P/AQ and /AU /C /E /F /K /L /M /P /R /S /U /X /Y/Z SSGPH287P130/A,SSGPH287RC/J SSGPH287RC/A,SSGPH287RC/C,SSGPH287RC/E,SSGPH287RC/G,SSGPH287RC/H,SSGPH287RC/K