This topic has been discussed here and there but there doesn't seem to be any "definitive" or at least "ballpark/guided" answer.
With HID, it was typically known to be 50-60w per sq ft for optimal lighting. LED, in theory, should be more efficient for "usable" light and therefore theoretically should require less watts per sq ft. However it seems after several discussions and articles from other sources, it's a bit more complicated than this since LED takes into effect PAR, LUX, and all of those other terms I'm not well versed on.
So is there a general guideline? Can we judge and help make decisions on how much LED to buy using watts per sq ft? Or is it needing an expensive PAR meter or "good enough" cheapo meter using some sort of calculation?
I've also heard that you should only need 60% of LED watt as you should 100% HID watt - again, not claiming valid, just another viewpoint.
Let's start with a simple one. HLG claims its HLG550 (600 w) replaces a double ended 1000 w HPS. Can this be a true statement? (Despite the QB boards seeming too close together for even coverage)
At this point I'm going with watts per sq ft and if it's too much I'll dial it down, run a wider spread of lights more "efficiently" and not at full blast. Better to have more than less and wishing you had it.
Would love to hear some thoughts on the matter.
With HID, it was typically known to be 50-60w per sq ft for optimal lighting. LED, in theory, should be more efficient for "usable" light and therefore theoretically should require less watts per sq ft. However it seems after several discussions and articles from other sources, it's a bit more complicated than this since LED takes into effect PAR, LUX, and all of those other terms I'm not well versed on.
So is there a general guideline? Can we judge and help make decisions on how much LED to buy using watts per sq ft? Or is it needing an expensive PAR meter or "good enough" cheapo meter using some sort of calculation?
I've also heard that you should only need 60% of LED watt as you should 100% HID watt - again, not claiming valid, just another viewpoint.
Let's start with a simple one. HLG claims its HLG550 (600 w) replaces a double ended 1000 w HPS. Can this be a true statement? (Despite the QB boards seeming too close together for even coverage)
At this point I'm going with watts per sq ft and if it's too much I'll dial it down, run a wider spread of lights more "efficiently" and not at full blast. Better to have more than less and wishing you had it.
Would love to hear some thoughts on the matter.