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1Lamp Series to 2 Lamp Series Lampholder Wiring Diagram

How to Replace 1 Lamp Series Ballast with 2 Lamp Series

A 1 lamp series ballast can be hard to find, but it can be replaced with a 2 lamp series ballast. Here is how a 2 lamp ballast is wired to a 1 lamp fixture.

1 Lamp Series Ballast

Factory wiring

After 1 Lamp Series Ballast is Replaced with a 2 Lamp Series Ballast

1 Lamp Series Ballast Lampholder Diagram

The ballast blue wires connect to one end of the lamp, the red wires connect to the other side. The common yellow wires are capped with small wire connectors.

Replace

Ballasts

Replace 1

Lamp Series Ballast with 2 lamp Parallel

Replace 1 Lamp Series Ballast with 2 Lamp Series

Replace 2

Lamp Parallel Ballast

Replace 2

Lamp Series Ballast with Parallel

Replace 2

Lamp Series Ballast with Parallel 2

Replace 2

Lamp Series Ballast with Series

Replace 3

Lamp Parallel Ballast

Replace 3 Lamp Two Parallel Ballasts with Parallel

Replace 3

Lamp Series Ballast with Parallel

Replace 3 Lamp Two Series Ballasts with Parallel

Replace 3

Lamp Series-Parallel

Ballast with Parallel

Replace 3

Lamp Series-Parallel

Ballast with Parallel 2

Replace 3

Lamp Series-Parallel

Ballast with Series

Replace 4

Lamp Parallel Ballast

Replace 4 Lamp Two Series Ballasts with Parallel

Replace 4

Lamp Series Ballast with Parallel

Direct-Wire Dual-Ended

LED Tube

Lights

Direct-Wire Single-Ended LED Tube

Lights