Tap a Light to Turn it On! No more getting up from your easy chair to find alight switch. Simply tap the metal portion of any lamp: once for night-lightradiance, twice for medium light, three times for bright light, and four timesto turn it off. Screw-in or plug-in converting styles are available. Each is UL listed. Enjoy easy on/off lighting without paying high prices for touchcontrol lamps! Maximum 150 watt bulbs; incandescent and halogen bulbs only.