Technical data: Version (general): without lamp for incandescent lamps, glow lamps and LEDs up to 2.4 W with lamp socket BA 9s - Mounting diameter: 22.5 mm - Energy efficiency class: n.rel. - Front panel dimensions (max.): 29.7 mm - Manufacturer's colour: yellow - Contents: 1 pc. - Product type: indicator lamp - Protection class: IP66, IP67, IP69 - Temperature (max.): +70 °C - Temperature (min.): -25 °C - Type (manufacturer type): M22-LC-Y - Further technical data: Connection cross-sections: 0.5 - 1.5 mm². Number of built-in indicator lights: 1. Lens design: flat. Lens shape: round. Rated insulation voltage [Ui]: 250 V. Rated impulse withstand voltage [Uimp]: 4000 V AC. Lens colour: yellow. Climatic resistance: damp heat, constant, to IEC 60068-2-78; damp heat, cyclic, to IEC 60068-2-30. Ambient temperature: -25 - +70 °C. Front ring material: plastic.