The 101-3830-09-201 is a panel mount indicator (PMI) base from the 101 series, designed to accommodate T-1 3/4 midget flange incandescent lamps. This component requires a 15/32" mounting hole and features solder terminals for secure electrical connections. The base is constructed from brass with a durable black nickel finish. It is intended for use in applications requiring reliable, panel-mounted visual indicators, such as in control systems, instrumentation, and electronic equipment.