LED surface-mount luminaire for indoor, comprising: Extruded aluminium housing profile, powder-coated. Fitted frame made of sheet steel, powder-coated. Micro-prismatic diffuser for efficient light distribution, glare reduction and high uniformity (MP). LED Sidelight-Technology for a homogenous light distribution over the entire area of the cover. Easy, subsequent replacement of the LED modules in just a few simple steps (can also be carried out without an electrician). Predominantly direct light distribution. Colour rendering index Ra > 80. Colour tolerance according to MacAdam ≤ 3 SDCM. Dimmable via TouchDIM®. With the “OSRAM BT Control” Bluetooth control, the light can be easily configured, personalised or grouped via the app using various parameters. In the tunable white version, the illuminance level and light colour can be manually adjusted from 2700K to 6500K depending on the time of day (DALI DT8). In the HCL version, the illuminance level and light colour can be manually adjusted from 2700K to 6500K depending on the time of day (DALI DT8). Sensor device available with task oriented PIR detector and daylight control. VDU application suitable acc. to EN 12464-1. Special colour versions available. Consult factory.