With secure, serrated-design retention fingers, Series 150 Incandescent Panel Indicator Lights come in red and blue. Applications include automotive equipment, mobile equipment, industrial machinery, recreational vehicle, after-market automotive equipment, and audio equipment status indicators. In control systems, the lights can provide on/off status indication and caution and stop status indication in monitoring systems. Lenses can be hot-stamped with custom legends and icons such as temperature, oil temperature or directional arrows. Terminals are silver-plated copper alloys with standard 1/4" slip-on connectors. In size T1-1/4, these lamps can use from 9V to 14V.