Marl 6mm Nickel Plated Brass LED Panel Indicators - 570/572 SeriesMarl indicators are available in a range of LED colours and offer a diffused colour 3mm LED. Marl indicators use standard intensity LED's recessed into a Nickel plated housing which requires a 6mm cut out. Ideal for panel indication applications.NoteThese LED indicators should not be operated without a suitable series resistor or other current-limiting device.10mm - 15.8mm MountingAll products have a reverse voltage of 5V.