Olive Drab Green
Well-Known Member
PPFD-wise, it adds up. What is the PPFD of a 600w HPS? Answer is, roughly 1100. 400, around like, 600-700? So it's roughly in between that at around 850 PPFD. Using two 89w, there is crossover, probably bringing it to around 900 or a bit over, and obvious doubling of PPF. You do the math. Dangerously close to 600w, albeit in a smaller area.rofl this is getting more and more entertaining, 600w replacement with 89 watts LOLOLOLOLOLOL