For lighting of the main rooms, we used recessed lights with bulb replacement option. The lights can be adjusted by luminosity, moreover they are also dimmable. By pressing the key on the dimmer, luminosity can be increased or decreased when necessary. Special ambiental effects were achieved by adding LED strips, hidden into the furniture, that was custom-made by the carpenter. LED strips transmit indirect reflecting light, which gives its final touch to the furniture design as well as a sense of home comfort.