Has anybody looked into leaf surface temps vs. Air temp with the SP line? I use a vpd calculator that i can adjust the difference between leaf surface remps and air temps and from what ive read, LED lighting with no IR waves is roughly 3 degrees C less than air temp, with HPS more like +6* C. Im wondering where the leaf temp would fall with the SP series. Right now im using -2* C, and seems to be working good, but i dont have a thermometer to read leaf temps.
PS i love the idea of having 2 SP6500 in a 5' by 5'
This is a question that i didn't meet. Anybody would like to share your ideas?