How to Switch From a Magnetic Ballast to an Electronic Ballast

Turn off the power running to the fixture.

Open the fixture and remove the lamps and ballast housing.

Use wire cutters to cut the both the power and neutral wire coming into the fixture. Power wires are black and neutral wires are white. Cap the wires running into the fixture with wire nuts.

Use wire cutters to cut the wires connected to the sockets to separate them from the ballast. Remove the magnetic ballast from the fixture.

Install the electronic ballast by screwing it into the fixture where the magnetic ballast was removed.

Use wire nuts to connect socket wires. Refer to the diagram on the electronic ballast as the wiring will vary with the number and type of bulbs in the fixture. Connect the power and neutral wires running to the fixture to the corresponding ballast wires. Secure the wires with wire nuts.

Replace the ballast housing and lamps, then turn on the power running to the fixture.