Makes your lamp, illuminated cabinet, mirror or any other device touch sensitive!! The Zing Ear TP-01 ZH control unit activates touch sensitive switching for incandescent lighting. The touch lighting dimmer module provides three intensity settings once integrated into an existing lighting system. If properly installed, the Zing Ear dimmer module can be switched and dimmed by touching metal base of lamp. Dimmer switch includes installation instruction with wiring diagram. Schematic also stamped on dimmer case for reference. Please be careful and make sure you turn off lamp or circuit breaker before installing Zing Ear unit!! This touch dimmer is UL approved and safe to use in household application within the US. Touch dimmers without certification can cause electric shock or be a fire hazard within the home. The Zing Ear unit has a small aluminum heat sink on the TRIAC to eliminate the risk of fire. The Zing Ear TP-01 has been confirmed to work with LED lights. The specifications must indicate the LED lights are dimmable. The Zing Ear TP-01 has been tested with Greenwatt 4W LED candelabra bulbs.