How many plants can you have under a 2ftx4ft 8 bulb newwave T5 40,000 lumen light? Assuming a scrog or sog. Maybe the better question is in an 8 cusqft area, how many lumens are needed?
I would say around 3000 lumens/ per square foot for veg and around 5000 lumens per square foot for flowering.
you should be fine with that light. Just make sure you use the right bulbs at the right time. 6500K for veg and 3000K for flowering for optimal results.
