The DIALIGHT 556 Series LED Panel Mount Indicators are robust and versatile devices designed for use in a wide range of industrial applications, particularly those involving hazardous locations. These indicators incorporate both InGaN and AlInGaP technologies to provide maximum light output and are housed in a nickel-plated brass construction with a transparent polycarbonate lens (UL 94V-0). They are ideal for instrument panels, mining applications, safety systems, oil refineries, transportation, agricultural controls, petrochemical facilities, power generators, pump system controllers, and environmental monitoring equipment. The indicators are rated for Class I, Division 2 hazardous locations and offer a watertight seal (NEMA 4X IP66) from the front of the panel, ensuring reliable performance in harsh conditions. They are also tamperproof and designed for high durability, with a long operational life of up to 100,000 hours.