The light from a 150W HPS is sufficient for 2 plants from sprout to bud, provided all other requirements are met. (mylar, light distance, plant spacing, ventilation, water, etc.)

Many people switch lamps between MH or Flouro for veg, and HPS for bud. But this is not a requirement. You can do the whole cycle with HPS no problem.
Volker Reviewed by Volker on . 150 watt hps good for 2 plants? is a 150watt hps good for 2 plants? Rating: 5