Ideal temp and humidity. New controller coming to-morrow.

Hi
I'm buying this digital controller to-morrow. (http://www.ecotechnics.co.uk/fan_speed_contoller.htm).

What's the ideal temp (day/night) and humidity for growing weed, there seems to be alot of conflicting ideals....

Daytime temps can be anywhere from 20 to 30C, any higher or lower could be bad. Normally you want night time temps to be about 3C to 4C degrees cooler than daytime temps. 60-70% humidity when in veg and 30-50% in Flower. These can vary by 10-20% during a grow and still have little effect on the final outcome. ie if it gets to 32C sometimes, you'll probably be just fine even if it goes down to 18C or you can only manage 50% humidity in veg.

Thats great thanks