Series: TRIONA square Decorative square LED surface-mounted luminaire. Flat, seamless frame: aluminium extrusion profile, powder coated. Cover made of sheet steel, powder-coated. Direct light emission through a diffuser made of non-yellowing plastic (PMMA) opal. Indirect light emission through a flush diffuser made of satin-finish plastic. LED backlight technology for homogeneous illumination of the entire light-emitting surface. Direct 60%, indirect 40% light emission. Suitable for Ceiling mounting, Wall (surface). Very easy installation thanks to plug-and-play connector system. Integrated DALI converter for controlling, switching and dimming. Direct/indirect light emission can be switched and controlled separately. Suitable for through-wiring. Colour: anthracite metallic (DB703) Length: 567 mm Width: 567 mm Height: 88 mm Lamp: LED Socket: without socket Colour temperature: 3000K Colour rendering index (CRI): 80 Light source: LED Socket lamp2: Without base Colour temperature: 3000K System power: 79 W Rated luminous flux: 9500 lm Beam angle Down: 107° Luminous efficiency: 120 lm/W Control gear: Converter, dimmable, DALI Control gear: Converter, dimmable, DALI Protection class: I Type of protection: IP 20