The 556-1503-304F is a 556 Series panel mount indicator designed for high-visibility signaling. This red LED indicator operates at 12 VDC, drawing a typical current of 95 mA to produce a luminous intensity of 22,000 mcd. It features a flat polycarbonate lens, a white nickel plated brass housing, and connects via 6-32 screw terminals. Designed for a 1.0-inch mounting hole, this durable indicator is IP66 and NEMA 4X rated, ensuring protection against dust and water in harsh environments. Common applications include instrument panels, safety systems, transportation, and industrial controls.