The Marl 698-521-75 has an indicator LED with a flat shape, 110VDC power input, a cutout of Ø8.1mm, an IP67 rating, and a light-emitting diode (LED) of Ø7.15mm. It is suitable for use in demanding environments where dust, dirt, and moisture could be present. It is a reliable solution for signaling an alarm, warning, or status, providing energy-efficient illumination.