Lets settle this once and for all. In nature it rains. That water sits on leaves and the sun comes out. Sometimes very brilliantly. Plants in nature don't just burn the hell up from this. I postulate that this is a myth and if I am to believe I am wrong, please, someone show me some actual evidence.
I am willing to admit when I am wrong but this idea is so out there...
Clean water, cooled lights at proper distance with decent ventilation, NEVER seen it happen. I have seen things I mistook for burning from nutrient solution but most of those turned out to be early warnings of nutrient deficiencies that I ignored and began to spread.
So, anyone, show me, not pics of your "water burns" but actual shots of you attempting to and successfully burning a plant leaf with water. Or, show me one peer reviewed paper that demonstrates this effect. Convince me, please so that if I am wrong I can stop spreading misinformation. If no one does this I will do it. I will take one plant and mist it twice a day during lights on and we will see what king of burning a 1kw can do at 12 inches.
I will say this, if you are to mist constantly, your plants leaves will spot up. That is because the water has heavy elements that begin to dry and peel the leaf surface. Think about how birdshit on the hood of a car can eat through the wax and even burn the paint in a spot. That is my experience and I am sticking to it unless someone can show me I am wrong.