Do you have an old lamp with a knob you no longer want? Here’s a quick and easy lamp knob hack you can do to replace it. You will need the lamp top and the socket switch. The socket shell is the assembly where the light bulb and switch are attached. To remove it, use a screwdriver to push up and unscrew it. Next, remove the socket switch from the lamp and check that it has two wires connected to it. The hot wire is usually attached to the brass screw, while the neutral wire is attached to the silver screw.