Frezon 14" RV Caravan Roof Vent 3-Speed Motor RV Fan 12V Skylight With LED Light

["Turn the handle clockwise to open the fan cover;Turn the handle counterclockwise to close the fan cover.","The Air In/Out button function uses the fan's air in/out buttons to reverse the direction of the fan. To change the direction of the fan, simply push a button to make airflow into or out of the RV.","with LED,Press the light button to turn the built-in LED light on and off.","This RV Roof Vent was designed as 3 Speed air out and 2speed air in.","Fan with 10 blades, running more stable and more quiet,Water proof and sound proof, hard to age."]