The Harmony XB4 series made of metal offers a wide range of 22 mm complete devices such as push buttons, indicator lights, and selector switches, including emergency stop switches. Additionally, the modular design of the devices allows all components to be purchased as individual elements, and they can also be adapted for a 30 mm installation size. Due to their quality, flexibility, and extreme robustness (protection classes up to IP69K), these devices are ideal for most applications in industry and buildings. This indicator light in blue features a universal LED with a protective module and requires a supply voltage of 110-240 V AC. The dome of the indicator light is smooth. Installed in a 22 mm hole, the device connects via screw terminals on the back of the product. Due to the numerous existing product standards and certifications, it is suitable for international use. Thanks to the Green Premium environmental label, you can obtain detailed information about material contents, environmental impacts, and circular economy, which support your sustainability goals.