I was talking about setting just your ballast there to reduce
radiant heat in room
latewood Reviewed by latewood on . How many plants under a 600w HPS? Hi, as you all know I have a 600w HPS in a cabinet lined with mylar. Im just wondering how many Lowryders Ill be able to grow under there. By the way, I can fit 6 in, but depending how well they do in the small pots Id be able to fit 8 in. Rating: 5