well many of you know that temps should be kept around 85 f. But that doesnt mean temperature taken from a gauge that is a foot away from plants. To get optimum results chillers have a temp gauge that hangs with a cord and is often placed an inch from plant nearest the light. Here is where you want to have 85 not a foot away or 4 fet away. 85f a foot away is like 93 at the plant leaf closest to the bulb. just thought i would share that with soem of you new guys.