widened the exhaust today. I was narrowing the 4 inch to a 2 inch hole through the house. The room was getting too hot so I tried cutting a new hole, 4 inches leaving two 2-inch holes as passive intake. hopefully it doesn't get too cold at night.
why the jumbo cfl you ask? because after my mh light was plugged in for a few minutes the other day I unplugged it and plugged it back in. nothing. maybe it was because it was too hot because 5 minutes later it was fine. I'm not taking any chances though that at 6am it won't come on - hence the cfl as back-up morning light to keep my plants light cycle groovy. I'll feel safe if after a couple weeks it never misses a turn-on.
no other preflowers yet