Many houses have bathrooms, hallways and other rooms where daylight only enters when you open the door. Dim and dark, these rooms are unwelcoming places until you turn on the light. Now that has all changed. VELUX Sun Tunnel signals the end of dim and dismal spaces in the home. VELUX Sun Tunnel brings natural light into even the darkest and most isolated spaces through a specially designed tunnel from roof to ceiling. Owing to the dark-coloured, flat, square frame and flashing in polyurethane and its clear and robust glass, the VELUX Sun tunnel goes well with any roof, in the same style as VELUX roof windows. The attractive and discreet ceiling diffuser unit with its acrylic pane melts into the ceiling, spreading a soft and restful light throughout the room. The tunnel between the roof and the diffuser is 35 cm in diameter and takes up a minimum of space in the loft.