The 556-1509-304F is a red LED panel mount indicator featuring a flat lens design and transparent polycarbonate construction (UL 94V-0). This indicator delivers a typical intensity of 29,000 mcd and is housed in white nickel-plated brass with 6-32 screw terminals for electrical connection. The unit supports voltage options from 12 to 125 V DC and 125, 230 V AC without requiring an external resistor, and operates reliably across a temperature range of -30°C to +85°C. With IP66 and NEMA 4X ratings, it is well-suited for outdoor and harsh environments including instrument panels, safety applications, transportation systems, and vending equipment where durability and visibility are essential.