Signature Series 130 CFM Humidity Sensing Ceiling Bathroom Exhaust Fan, Energy Star Modern Style Vanities Q: What type of lubrication Q: What type of lubrication does this compressor use It is water and weather resistant Equivalent to a 150 watt light Bulb 3 m wire between land and solar panel with water proof connections and 3 m wire between motion activated security sensor water proof connections Remote functions on off 36 Color Finish White Duct Compatible Sizes 4 in Features Humidity Sensing Grill Shape Square Housing Material Galvanized Steel Included Hardware Installation Type Ceiling Its humidity sensing feature automatically turns on and off as needed to maintain a comfortable and healthy indoor environment