although the T5's put out less heat than a hid light I had to move my T5 light up about another 2" my temp got up to 87deg in my home box I think a big part has to do with the weather outside it was 104 deg today. Here it is at 10:30 p.m. and the temp is 90deg feels like 104deg. I will be glad when August is over with and we get some cooler temps. I have a old house built in 1940 something and its hard to cool ecspecially in the hot months which is right now. As long as I can keep the temp where it is I will be fine with that, I left my hand under the light for about 2 minutes about 2 inches from the plants tops and it was fine...............I just had a thought......black radiates heat and my hydrothermometer is cliped onto the edges of my black bags. Im going to move it directly onto the dirt and see if this helps.

not even a minute after removing from the bag the temp droped 2 degrees.

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