Strobe light (for visual signaling) on the left & lamp on the right, along with switch panel and plug-in module
 

Multiple switch panel on left &
lamp plug-in module on right 

 

Plug-in module for lamp or strobe light

    The remote control devices pictured here are sold at all Radio Shack stores and allow for turning lamps on & off throughout your home from one easy to reach multiple switch panel location. In addition, by plugging in a strobe light rather than a lamp, the flashing light can be used as a visual signaling device (for signaling the hearing impaired), or to alert a person some distance away outdoors.