The Wells 51157 red signal light provides a visual indication of operating status on compatible coffee brewer and food warmer equipment. Measuring 1/2 inch and rated for 250V, this indicator illuminates when its connected electrical circuit activates. Its red lens makes the status signal easy to distinguish on the equipment control panel, allowing staff to observe the warmer or brewer... https://partsfe.com/51157-wells-light-indicator-12red-ff/1-51157.html