CNX722 Series 120V LED Panel Mount Indicators VCC CNX722 Series 120V LED Panel Mount Indicators are 22mm (0.866”) ruggedized indicators designed for extremely harsh and outdoor environments. These 120VAC version indicators are part of the all-in-one FlexVolt™ product family. The CNX722 indicators with built-in LED offer fastpitch threads and special nut assemblies that require only a single turn for quick and easy installation.