CNX722FV Series FlexVolt™ Panel Mount Indicators VCC CNX722FV Series FlexVolt™ Panel Mount Indicators offer fast, easy installation in harsh environments. The CNX722FV Series indicators can be used with voltages ranging from 5V to 28VDC circuits, are resistant to shock and vibration, and are moisture-sealed for outdoor applications. Featuring a built-in LED, the 22mm CNX722FV Series eases assembly via fast pitch threads that require only one turn. The indicators are available with a variety of connection options to simplify installation. Custom LEDs and lens colors are available, along with an optional bezel that is also available in many colors.