I am interested, but the details are a bit hazy …
require a simple, energy-saving ballast bypass (direct wire) installation.
Is this just an action, or is there something additional that needs to be purchased?
You don’t need to purchase anything else.
But you cannot just replace your old fluorescent blubs with these bulbs. You will have to do some wiring within the old fixture by removing / bypassing the old ballast and wiring the house line voltage directly to the bulb connectors (tombstones) at the end of each fixture.
Also, if your fixture has shunted tombstones then you will probably have to replace them with non-shunted types. The following link explains the difference.
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