This Harmony XB4 plain lens modular green pilot light is supplied with 230V to 240V AC, uses a universal LED.::It has a metal bezel.::This pilot light, designed to last without maintenance for a bright indication of process and machine operations, is easily installed into standard 22mm diameter cut-outs and connected with simple screw-clamp connections.::It is clearly distinguishable visually at a distance thanks to a bright and long lasting LED illumination.::It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66 / IP67 / IP69 / IP69K, making it ideal for operation in harsh environments.