Luminary body is made from silver or black aluminium. Diffuser is made from metacrylate. Wall-mounted luminary (ceilings, walls). Optionally, luminary can be mounted by the use of link suspension or bracket. The highly efficient LED sources of 1 or 2 W make the light sources. The maximum charging time is 12 or 24 hrs. The LiFePO4 and Ni-CD batteries can operate within luminaries. 1st electric isolation class. It has IP41 protection level against water and dust penetration. Supply voltage: Autonomous luminary - 230 VAC/50-60 Hz. Luminary for CB central battery - 220-240 VAC/50-60 Hz; 175-275 VDC. Luminary for RUTA CEN central battery - 24 VDC. Distance of diagnosis: 30 m. Permissible ambient temperature: 0° C - 40° C. Additional information: LED signalizing the presence of voltage and battery charging Deep discharge protection. Modern design. Luminary in 3rd class of low voltage protection of RUTA CEN central base.