Great light, probably a bit overkill for this size/height tent. I lowered the light early in the grow, eventually raising it to its maximum height early into flowering. I used a watt meter to make sure I was getting the advertised 450 watts, and I was. About 40% on the dial seemed like the sweet spot for this sized tent - anything higher would tend to burn tips or cause leaves to turn upwards. This light increased my tent ambient temp by about 10 degrees Fahrenheit at this setting compared to outside the tent.