First Autoflower Grow

Almost 3 weeks from germination and early veg seems to be doing well. Now that I'm watering the whole substrate I had noticed spikes in my humidity up to 75% for a couple days so had to adjust my exhaust control temp but the space heater with controller coneters the cool air from my basement. Just started lst to hope for even bud sites later on. These girls are under 2-2000w Uoiuxc quantum board led lights, true watts are 240 a piece.