The concept is very unique and simple. The body of the chair is made out of simple tubular metal frame. In one of the frames, the light is fixed. That particular frame, which has light in it, can be detached and rotated. Thus, when a person needs to use the light, he can detach the top of the chair (where light exists) and can rotate it up to 180 degrees depending on the sitter’s needs.
The white light present in one of the frames is bright enough to help the sitter read the notes even when he sits in the room. However, it acts just like a reading light and not as a room light. The light cannot spread across the room due to the small radius of the light.