Series: TRIONA square Decorative square LED pendant-mounted surface luminaire. Flat, seamless frame: aluminium extrusion profile, powder coated. Cover made of sheet steel, powder-coated. Canopy made of aluminium, 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. 4-point steel cable suspension, steplessly adjustable. Easy installation with transparent, adjustable pendant cable and canopy with magnetic fixing. Driver integrated. With Casambi smart+free Bluetooth control for wireless network and operation using Android / iOS devices, free app available for download. Direct/indirect light emission can be switched and controlled separately. Suitable for through-wiring. Colour: silver, matt (approx. RAL 9006) Length: 567 mm Width: 567 mm Height: 52 mm Suspension length: 500-1200 mm Lamp: LED Socket: without socket Colour temperature: 4000K Colour rendering index (CRI): 80 Light source: LED Socket lamp2: Without base Colour temperature: 4000K System power: 79 W Rated luminous flux: 9850 lm Beam angle Down: 107° Luminous efficiency: 125 lm/W Control gear: Dimmable Bluetooth converter Control gear: Konverter dimmbar Bluetooth Protection class: I Type of protection: IP 20