The Panasonic FV-11VFL4 Bathroom Fan WhisperFit-Lite with Light 4" Duct - 110 CFM provides quality, efficiency and technology, offering everything you could want in a bathroom fan. This great bathroom fan provides quiet operation while also offering powerful performance through the use of the aerodynamic design technology. The new design of this great bathroom fan uses a tapered Sirocco fan to deliver improved ventilation. The Panasonic FV-11VFL4 Bathroom Fan WhisperFit-Lite with Light 4" Duct - 110 CFM has a low profile housing that has a depth of 5-5/8". This super slim fan minimizes the space requirements and also the installation time; this great bathroom fan fits in 2 x 6 or larger construction. The Panasonic FV-11VFL4Bathroom Fan WhisperFit-Lite with Light 4" Duct - 110 CFM is ideal for both remodels and manufactured structured homes. This great bathroom fan also offers overhead lighting in addition to great ventilation. The lighting is provided by a two 13 watt self-ballasted GU24 CFL lamps.