The 657-2435-303F is a bi-color watertight panel mount LED indicator featuring a domed polycarbonate lens designed for harsh industrial environments. This indicator combines green and yellow LED colors with typical intensities of 500 mcd and 260 mcd respectively, operating at 10–30 VDC with no resistor required. The unit is housed in polycarbonate (UL 94V-0) with a neoprene gasket and 11/16-27 NS threads, providing IP67 and NEMA 4X ratings for complete watertight protection. It operates reliably across -40°C to +85°C and features 6-inch wire leads with common cathode configuration. The 657-2435-303F is ideal for aircraft, military vehicles, industrial panels, EV charging stations, and wastewater treatment controls where durable, visible status indication is essential.