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Thanks, GBAUTO. So I'm right in thinking that the input wattage of the driver isn't relevant and what you need is the total wattage actually being used of the LED's/luminaire and it's efficacy?

Thanks for the reply and sorry for my general ignorance, I'm very new to all this. From Growmau5's vid he used the PPF to calculate what I assume is the average PPFD being output from the lighting array by dividing it by the area of the grow room/tent as you set out in your post. While this...

Hi RIU! I'm new here and was hoping some of you LED experts might help me with something. I was watching a YouTube vid ( ) by Growmau5 (great LED YouTuber btw as I'm sure you all know) on the Vero 29 COB's and how efficient they are in Micromoles/per Watt and how you can use this to calculate...

This is a duplicate thread... please delete sorry for the double post. Hi RIU! I'm new here and was hoping some of you LED experts might help me with something. I was watching a YouTube vid (