I don't know how to multiple quote...so my ambiant temp in first room which is veg is 84...don't know about my flower which I believe is five deg F higher at least(guesstimate at this point)...so ninety...this is still doable with a cool tube you say kindprincess? let me know...I don't want to make the investment if it is moot...and so sorry if I took attention from your original q, turbo420, B