Install the switch
Tired of reaching up under the lampshade to switch on your favorite lamp? Mount an in line switch on the cord. Several sizes of in-line cord switches are available at hardware stores, home centers and lamp specialty stores. Look at the tiny printing on the cord to determine which size switch you need, SPT-1 or SPT-2. In-line cord switches also vary slightly in design. Consult the instruction sheet before installation.
Note: Connect an in-line switch only to a cord with a polarized plug. A polarized plug has one prong wider than the other so you can only insert it one way into an outlet.
Photos 1 and 2 show how to prepare the cord for the new switch. Make sure you cut the non-identified (hot) wire only. It's the one without any indentations or ribbing.
Unplug the lamp before you start the repair.