The 585-1221F is a non-polarized red LED indicator bulb featuring a T1 3/4 midget flange base designed for direct mounting into industry standard sockets. This multi-chip based LED operates at 6 V DC with a typical current consumption of 75 mA and delivers a peak wavelength of 660 nm with an intensity of 50 mcd. The device operates reliably across a temperature range of -20°C to +60°C and features RoHS compliance, offering 90% less power consumption compared to traditional incandescent bulbs for extended operational life. Ideal applications include control panels, instrumentation, warning lights, communication equipment, and portable equipment where reliable red indication is required.