NL177C2A is a panel mounting LED indicator light designed for various panel design applications. The indicator is available with neon, LED, mains LED, or filament lamp illumination options and comes in multiple colors including red, amber, green, blue, and clear lenses. It features bezel sizes ranging from 6.7mm to 16.3mm diameter with a wide choice of styles. The indicator supports various voltage options including DC LED (2.0/2.2V with resistors available for other voltages), AC mains LED (110-230V AC), and filament (6V, 12/14V, 24/28V). Common applications include control panels, instrumentation, and equipment status indication where visual feedback is required.