Temperature - in lap "sun" or "shade"?

When I read the temperature, should I consider the temperature that the atmosphere of the grow environment is or the heat generated from the lamp itself on the leaf?

I currently have my thermometer in the light, on the ground, directly below a 175W CFL for my vegetation box. It is about 12" from the light and it is currently reading 30-34 celcius (86-95 farenheit).

I haven't actually measured the temperature in the shade, but it is significantly less. I'm using a house-fan rigged up to a home made duct (a plastic bag taped on both ends) to a hole in the bottom of the box.

Any thoughts?


(Sorry the title was suppost to be Lamp, not "Lap".. hah)

try to measure the temp as close to the top of the plants as possible. 70-80F for veg is fine, a little cooler for flowering not going below 60F during darkness