Decorative rectangular surface-mounted LED luminaire featuring a flat seamless frame made of powder-coated extruded aluminum profile. It has a powder-coated sheet steel cover and provides direct light emission through a diffuser made of non-yellowing opal plastic (PMMA). Indirect light emission is achieved via a flush diffuser made of satinized plastic. The LED backlight technology ensures homogeneous illumination across the entire light-emitting surface, with direct light emission at 70% and indirect at 30%. This luminaire is suitable for ceiling and wall surface mounting, and it allows for simple installation thanks to a plug and play connector system. It includes integrated control gear and is DALI dimmable. The design supports through-wiring and features Casambi smart+free Bluetooth control for wireless networking and operation via Android or iOS devices, with a free app available for download.