Ballast t12 t8 fluorescent mikrora ballasts retrofit Direct wire t8 led tube retrofit ballast bypass t12 replacement T8 tube wiring ballast diagram bypass led retrofit wire direct 4ft light t12 bulbs replacement type 25pack dlc instruction below
Sylvania 49943 | 2-Lamp 4' T8 Fluorescent Ballast | USALight.com
T12 to t8 ballast wiring diagram