Sizes: Available in sizes of 6mmand to match your specific design requirements. Crafted with durability in mind, each light features a robust metal construction, ensuring a long-lasting performance. Multiple Voltages Compatible: These indicators are versatile, voltages including 3V making them perfect for numerous electrical environments. This comprehensive set of 20 LED Indicator Lights is perfect for customized installations or replacements. Easy Installation: Each indicator comes pre-wired for a quick and secure installation process, suitable for various applications such as control panels, dashboards, and more.