?The Marl 520-301-04 is a silver, IP67-rated, LED indicator with a flat profile and a Ø6.1mm cutout. It operates at a voltage of 1.85VDC. It is designed to work in a wide variety of applications, from industrial to home automation. Its strong design helps protect the LEDs, keeping them safe from dust, moisture, and vibration. The LED is visible through the lens even from a distance, making it an ideal solution for signaling purposes. It is ideal for a variety of applications that require a visible indication of status, such as indoor or outdoor lighting systems, home automation systems, and alarm systems.