The Hatco 02.19.154.00 Signal Light is an electrical indicator that is to be used in compatible food warmers and heated cabinets. This signal light is rated at 125 volts and 1/3 watt and occupies a 1/2" panel hole and provides a visual indication when the heating circuit of the unit is on. It is fitted on the control panel of the equipment and is connected to the electrical system of ... https://partsfe.com/signal-light12-red-125v-for-hatco-part-021915400