Multiline E and EC are highly variable and mutually combinable range of rounded oval-shaped luminaires suitable as a main source of illumination for diverse interior spaces. The luminaires are available with LED light sources, colour temperature of 3000K and 4000K, colour rendering index of Ra>80 and MacAdam3 colour difference. The luminous flux is regulated by DALI, DSI, PWM, DMX and TW protocols – using optical, infrared and radio frequency devices. Perfectly handled thermal management helps the LED light source work with high efficiency and secures its cooling properties.