hi everyone, i have a question which i have found variable answers. which light is better for veg? 1000 w hps? or 400 w mh? i have looked and found numerous answers and no real straight answer. any help is greatly appreciated. thanks
Mh is better for vegging, hps is more productive in flowering. The problem however, is that switching between the two is not great for the plants. The plants produce specific chlorophylls for specific wavelengths, when you change the light spectrum the plant suffers a surfeit of energy until it can produce sufficient new chlorophylls to match the new light source. Expect almost a week of lull when switching over.
Next grow around I was planning on using my 1000W MH during VEG and my 1000W HPS during flowering. Will this be over better for plant growth and yeild or should I stick to just HPS veg and flower?