Philips Advance Centium 40W (F40T12) 1 or 2 Lamp 4 ft T12 120-Volt Rapid Start High Frequency Electronic Fluorescent Replacement Ballast 520460 - The Home Depot
T5 HO Replacement Sockets Shunted - GrowGiant.com
Philips Advance Centium 40W (F40T12) 1 or 2 Lamp 4 ft T12 120-Volt Rapid Start High Frequency Electronic Fluorescent Replacement Ballast 520460 - The Home Depot
Bi Pin Rapid Start Turret Socket | Turret Sockets | H. H. Fluorescent Parts Inc.
Philips Advance RELB-2S40-N Electronic Ballast, T12 Lamps, 120V Lighting, 1 Count (Pack of 1), Black - Amazon.com