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How to Replace 3 Lamp Rapid Start Ballast with Instant Start

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3 Lamp Rapid Start Ballast Diagram

Factory wiring

3 Lamp Rapid Start Ballast Replaced with Instant Start Diagram

3 Lamp Series To 3 Lamp Parallel Lampholder Wiring Diagram

3 Lamp Rapid Start Ballast Replaced with 4 Lamp Instant Start Diagram

3 Lamp Rapid To 4 Lamp Instant Start Lampholder Wiring Diagram
  1. Connect each of the individual blue wires from the instant start ballast to each pair of the lampholder individual wires (red, blue and blue-white).
  2. Connect the ballast common red wire to the yellow pair of lampholder common wires.
  3. When replacing with a 4 lamp ballast, cap the fourth individual blue wire with a small wire connector.
3 Lamp Series Lampholder Wiring Diagram