The 657-2415-303F is a bi-color watertight LED panel mount indicator featuring a domed polycarbonate lens designed for harsh industrial environments. This indicator operates at 10–30 VDC with no resistor required and provides red and green LED colors with typical intensities of 255 mcd (red) and 500 mcd (green). The unit is housed in polycarbonate (UL 94V-0) with a neoprene gasket and 11/16-27 NS threads, featuring 6-inch wire leads with common cathode configuration and an 18 AWG anti-capillary wire. It is rated for -40°C to +85°C operating temperature and -40°C to +100°C storage temperature, with NEMA 4X and IP67 certifications ensuring durability in wet and corrosive environments. Common applications include aircraft and military vehicles, industrial panels, EV charging stations, and wastewater treatment controls.