panasonic fv-0511vfl1 whisperfit dc retrofit ventilation fan with light, dimmable led light and nightlight, 50, 80 or 110 cfm, quiet energy star certified energy-saving ceiling mount fan, residential remodel, ul listed for tub or shower enclosure when gfci protected panasonic panasonic whisperfit dc fan / dimmable led and nightlight is an ideal retrofit solution. built-in energy efficient ecm (dc) motor with pick-a-flow airflow selector allows you to select required airflow (50, 80 or 110 cfm). single-hinged flex-z fast bracket, pre-installed alignment guides, and temporary clip allows for flexible, fast, and easy installation. can be used to comply with the latest codes and standards.