If your lights are in hoods and cooled by and exhaust fan you can just use that foil hvvac or furnace tape to tape them up....Thanks. I have exhaust for the lights and fresh air on a timer. If 40 is good, I'll let it role.
Many thanks.
40 is waaaay better than 60 imo.do you have air intake? exhaust?either of the 2 will reduce humidity too. how many 1000's? 2 or more will zap humidity. I had to run a float valve with r/o water to my humidifier to keep up. no more filling reservoir hahahaha
alot of peeps say 40 is perfect in flower. Increases terpenes/trichoms and keeps botrytis and powdery mildew at bay. otherpests too