From what I have heard, LED's are good for supplemental lighting, but NOT for primary, you should never stinge on lighting because yield will show you that you are lacking by the end.

HPS is definitely the right choice, start off with MH for veg, then when you go in to flowering, switch to HPS.

MH uses more of the blue spectrum of light, imitating that of the summer sky. HPS for more of the orange/red spectrum which the plants will use more during flowering (imitating the fall sky).

I would say stick with the MH/HPS, and if you wish, add LED as supplement. Growing solely on LED would not yield anything worth mentioning.
THContent Reviewed by THContent on . LED vs. HPS are leds better then HPS and do you need differnt lights for each stage does anybody know i think im going to switch for power purpose but i need to know if you need differant lights and which types of leds anything would help and what siz LED will grow the same area as a 600w HPS thanks for any information Rating: 5