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How To Replace 2 Lamp Series Ballast with Parallel

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2 Lamp Rapid Start Ballast

Factory wiring

Replace 2 Lamp Series with Parallel Ballast Wiring Diagram

A 2 lamp series magnetic ballast should be replaced with a 2 lamp parallel electronic ballast. Each lampholder has four separate connections.

  1. Connect each of the individual blue wires from the parallel ballast to each pair of the lampholder individual wires (red and blue).
  2. Connect the common red wire from the parallel ballast to the yellow pair of lampholder common wires.

 After 2 Lamp Rapid Start Ballast is Replaced with Instant Start

After 2 Lamp Series Ballast is Replaced

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