Robertson 3P20167 Fluorescent eBallast for 3 F32T8 Linear Lamps, Instant Start, 120-277Vac, 50-60Hz, Normal Ballast Factor, HPF, NEMA Premium, Model ISA332T8HEMV /A (Successor to Robertson 3P20015): Amazon.com: Tools & Home Improvement
Robertson R-SP79P 5/6/7/8w CFL 1-Light Magnetic Ballast – Lighting Supply Guy
Robertson 2P20158 ISL296T12MV Pak of 10 Fluorescent eBallasts for 2 F96T12 Lamps, Instant Start, 120-277Vac, 50-60Hz, NBF, HPF, (for HO lamp Applications The Recommended Ballast is The PSB296T12HOMV): Amazon.com: Tools & Home
Robertson R-SP79P 5/6/7/8w CFL 1-Light Magnetic Ballast | eBay