Delivering superior brightness and high-intensity daylight visibility, Dialight's watertight, 556 series, 1" indicators incorporate the latest LED technology in five standard colors while meeting IP66, NEMA 4X, Class 1 Div. 2, and UL certifications. This product line is available in 12 V_DC, 24 V_DC, 37.5 V_DC, 72 V_DC, and 125 V_DC operating voltages as well as 125 V_AC and 230 V_AC operating voltages. These panel-mount indicators are ideal for a wide range of indoor and outdoor applications, including instrument and UL 508 panels, safety indicators, power generation, rail, bus and airline transportation, and vehicle and equipment applications.