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GE UltraMax Proline Electronic Ballast, 120/277 Volt Instant Start Ballast, Normal Ballast Factor, Ballast for Fluorescent Light (1) or (2) Lamp T8, Compatible with F32T8/WM and F17T8 - Electric Plugs - Amazon.com
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Philips Advance Optanium 1 or 2-Lamp T8 4 ft. Instant Start Electronic Fluorescent Replacement Ballast 520445 - The Home Depot
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