When you install the AmerTac 6702BC 150W Touch Lamp On/Off Screw-In Control, you'll never have to use the lamp's switch again. Simply screw the bulb into the control module and then connect the module to any lamp with a metal socket. Then tap the lamp once to turn it on. Tap the lamp again and the light will turn off. Use with incandescent or fluorescent bulbs up to 150 Watts only.