The 609-2122-120F is a 9mm recessed LED panel mount indicator designed for status and power indication in industrial control panels and instrumentation. This red LED indicator operates at 6V DC with a typical current draw of 15 mA and delivers 85 mcd typical light intensity. The unit features a brass housing with chrome plating, copper-nickel plated terminals, and mounts through a 0.374" (9.5 mm) hole with a maximum panel thickness of 0.374" (9.5 mm). It is rated for operating temperatures from 0°C to +85°C and storage temperatures from -40°C to +85°C, with RoHS compliance and un-polarized operation for flexible installation. Common applications include main power indication, remote power indication, maintenance and warning indication, and general instrumentation across industrial equipment and control systems.