FeaturesQT series ventilation products offer the rare combination of power and extremely quiet operationOffered with a variety of additional functions such as lights, nightlights and heatersHeater/fan/fluorescent light brings convenient, comforting warmth to your bathroomQuiet, high output 1500 W heater with exclusive, efficient PowerHeat™ design6 in Ducting for superior performance, 4-function switch (sold separately)Bright, energy efficient, 36 W fluorescent lighting (two 18 W, GU24 based fluorescent bulbs included) convenient 7 W nightlight (bulb not included)Fan motors are engineered for continuous operationSnap-in light diffusing lensEnergy efficient lighting uses (2) 18 W (max) high efficiency, GU24 based, fluorescent lamps (included) and 7 W nightlight (not included)Resilient anti-vibration mountsPlug-in, permanently lubricated motor low sound, high performance blower wheelPlug-in, permanently lubricated motor functions independent of ventilatorAdjustable mounting brackets span upto 24 inUse model 77DV (ivory)/77DW (white) 4-function controlRequires a dedicated 20 A circuitFits in 2 x 8 in constructionHorizontal duct direction0.9 Sones sound level42.8 W at 0.1 in41.7 W at 1/4 in