thanks Tiny , Yea I am learning and helping when I can. Which isn't too dam often. Keep your tent zippers closed you do not want unwanted light . I hooked up a squirrel fan I time it on for a one minute and off for 15 minutes on. At the same time I am venting out of my tent the same amount with another squirrel fan this one has the filter to keep those wonderful odors from going out of the tent or room.