The Delfield 2194095 Thermostatic Control Food Warmer Signal Light provides a clear visual indication of heating activity for convenient equipment monitoring. This replacement red indicator light is designed for compatible commercial food warmers and features a 1/2-inch mounting size with a 250V electrical rating. It works by illuminating when the connected thermostatic control circui... https://partsfe.com/2194095-delfield-signal-light-12-red-250v