The NuTone QTNLEDB LunAura Square Design Light offers the convenience and safety of functional night lighting yet is soft enough to allow for return to restful sleep. The calming blue edge-glow can turn any room in the home into a unique, calming space. It can create a spa-like setting for a long, hot bath. In addition to these night lighting benefits, it also includes bright white main task lighting, ultra silent ventilation and is Energy Star qualified. The LunAura QTNLEDB has a square green-tinted light panel which turns blue at the flick of a switch. Rotate the clear plate 45-Degrees to create a jewel-like diamond appearance. Features bright 36 watt fluorescent main lighting (2 18-watt GU24 bulbs included), a blue LED edge glow nightlight, a motor engineered for continuous operation, and a hanger bar system for all types of construction. Comes with a 3-year manufacturer"s warranty. Technical specifications: 110 CFM at 0.7 Sones with 6-Inch ducting, 90 CFM at 0.9 Sones with 6-Inch to 4-Inch duct reducer (included). Energy Star Qualified. UL listed for use over bath tubs or showers when connected to a GFCI protected branch circuit. Fits 2-Inch by 8-Inch ceiling construction.