The SM471801N with Led Segment Display 1 1.8'' (45.72mm) Common Anode Red Through Hole RoHS is an ARK Tech product. It is a light emitting diode (LED) display designed for a wide range of applications such as automotive, instrumentation, machinery, medical, and other industrial applications. This part features common anode construction, a viewing distance of up to 10 meters, and a high contrast ratio of 2000:1. It has a built-in isolator, making the module suitable for harsh environment and rigid safety requirements. Its unique multi-color LED construction allows the module to be used for different display purposes in a single device. This LED segment display has a low power consumption and provides superior luminous performance in both indoor and outdoor conditions. It is compliant with RoHS regulations, making it an environmentally-friendly product.