t-5 t-8 and t-12 Lighting Discussion

[drudown11]

Is it bad to Veg with 600w HPS? just wanted to throw that out there.

not at all. Its just not ideal. The red end of the spectrum encourages fruit and flower growth and encourages internodal spacing causing plants to grow taller. The blue end of the spectrum(MH emit a majority of blue light) encourages green leafy growth, and encourages stockier branching and shorter, denser plants. The difference wont be too noticable, I veg with HPS bulbs as well