The 557-1304-203F is a daylight viewable LED panel mount indicator from Dialight's 557 Series, designed for outdoor and harsh environment applications. This bi-color indicator features red/green LED capability with integrated feedback circuit (green wire) that monitors LED status, operating at 12 VDC with typical current consumption of 70 mA for red and 16 mA for green, delivering intensities of 720 mcd and 1800 mcd respectively. The indicator incorporates both InGaN and AlInGaP LED technologies housed in a white polycarbonate body with transparent polycarbonate lens (UL 94V-0), featuring a 0.500-inch (12.7 mm) diameter bezel and is watertight to Mil-L-3661B specification. It operates reliably across -30°C to +80°C and is RoHS compliant, making it ideal for instrument panels, safety applications, transportation systems (rail, bus, airline), vending machines, gaming equipment, and lane control systems where durability and visibility in daylight conditions are essential.