Button is a fun filled way to look at (so-called)zero watt night lamps. Butt-On is a low wattage night lamp with integrated switch.So when you pinch the Butt(on) it turns the light on and can be turned off by pinching it again ;).The lamp is directly plugged on to the socket. The material is soft translucent silicon based rubberfor better(sensuas) tactile feel.