The 656-1209-304F is a high-intensity LED panel mount indicator designed for industrial control and signaling applications. This single-color yellow LED indicator operates at 5 VDC with a typical current of 10 mA and delivers a typical intensity of 190 millicandelas (mcd), providing reliable visual feedback in instrument panels, flow controls, and transportation systems. The indicator features a flat lens design with transparent polycarbonate (UL 94V-0) construction, brass housing with white nickel plating, and blade terminal connections for secure panel mounting. With an operating temperature range of -30°C to +85°C, NEMA 4X and IP66/67 ratings, and RoHS compliance, this indicator is well-suited for demanding industrial environments including rail, bus, airline, pump panels, and vending/gaming applications.