LED safety sign light for central emergency lighting supply with circuit monitoring without individual monitoring of the light, surface-mounted, operating device with NFC interface for addressing, configuration and maintenance using PROset Pen (item no.: 22170290) or PROset app, addressing also possible optically or via EZ addressing, permanent switching: -40°C to +30°C, power supply: 220-240 V AC (+/- 10%) 50-60 Hz, 176-280 V DC, housing made of white polycarbonate with metal clips on the side, basic version can be mounted on the ceiling without tools, plug-in terminals for through-wiring up to 2.5 mm², tool-free installation of the frameless pictogram, light in permanent switching, light output: 4.8 W, 10% dimming value in emergency operation, protection type: IP65, protection class: SC1, impact resistance: IK03, dimensions of the light with safety sign: 335 x 55 x 238 mm, weight: 0.44 kg, luminaire wired halogen-free, luminaire with D mark (for use in an environment where a deposition of conductive dust on the luminaire can be expected),