I want to know can I use a 450w vipraspectra led if i plan to top the plant in order to create a manifold or should I just get a 250w MH? I have a 600w HPS for flowering. I want to start a perpetual harvest. Will the growth with the 450w LED be slower than 250w MH?
It would depend on the space you’re trying to light really. If it’s a small area then yes the 450 would do. If it’s for a larger area I would suggest multiple “300w” panels. First to third grow. From beginner to novice lol.