This Harmony 9001SK, blue pilot light with integral LED and plastic dome is supplied with 110V AC/DC. It has a double insulated plastic bezel. It is easily installed into a standard 30mm diameter panel cut-outs and connected with simple screw-clamp connections. It is clearly distinguishable visually at a distance due to clear colors and illumination via integral LED, enabling complex machine statuses to be read at a glance. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66, making it ideal for operation in harsh environments. Impact and corrosion resistant plastic body ensures product continues to operate even after severe accidents.