The 657-2704-103F is a watertight LED panel mount indicator featuring a yellow domed lens with tinted diffused design, engineered for harsh industrial environments. This indicator operates at 24 VDC with a typical intensity of 1250 mcd and is housed in polycarbonate (UL 94V-0) with a neoprene gasket for superior sealing. The unit features an 11/16-27 NS thread mounting interface, 0.687" (17.46 mm) mounting hole, and supports panel thicknesses up to 0.350" (8.89 mm), with 6" wire leads (18 AWG anti-capillary). It meets NEMA 4X and IP67 ratings, operates reliably from -40°C to +100°C storage temperature, and is RoHS compliant. Ideal applications include control panels, industrial dashboards, wastewater treatment controls, and heavy-duty vehicle instrumentation where durability and visibility are essential.