my brothers sisters cousins uncles grandmas neighbour knows a guy.. that has had no problems getting 1.5- 2 lbs per 1000w hps , with plants that were veged under only hps, personally .. i know mh are better for veg.. but certainly not essential, especially for sogs that only have a short veg.

Same goes for mh for flowering .. swim has seen side by side rooms .. one room 2 k mhs .. one room hps ... same strain .. with little difference in yield.
blackdomina Reviewed by blackdomina on . HPS LIGHT FOR VEGGING???? i just went out and bought a 50 watt hps light and fixture im gonna get another but my question is can i use a hps light for vegging and flowering i konw i can use for flowering just not vegging i also wanted to know if you can use a mercury vapor bulb/fixture for vegging please if i can would love two add it to the grow area!!!! Rating: 5