Wall and ceiling mounted LED luminaire for indoor, comprising: Housing made from sheet steel and diecast aluminium, powder coated. Micro-prismatic diffuser for efficient light diffusion, glare reduction and a high uniformity. LED Sidelight-Technology and light orienting plastic optic for a homogenous light distribution over the entire area of the diffuser. Predominantly direct light distribution. VDU application suitable acc. to EN 12464 -1. Colour rendering index Ra > 80. Colour tolerance according to MacAdam ≤ 3 SDCM. Dimmable via TouchDIM®. Built-in driver.