Spetsifikatsioon tootele Lamp, Schneider Harmony XB4 Series Control & Signalling Units, Harmony Series
| Mounting | front |
| Supply voltage | 24V AC, 24V DC |
| Operating temperature | -25...70°C |
| Leads | connectors |
| Illumination | LED |
| Lamp colour | red |
| Type of switch accessories | illuminating unit |