You can stay with flouros ( I'd recommend that for a first-time grower)or go uner HID, but remember that a HID put off a lot of HEAT, which seedlings are vulnerable to. Balancing distance to the light based on maximizing intensity while minimizing heat is tough. Put your hand palm-down at the level where the soil surface will be. How does it feel? Too hot? Raise the light. Now, note this distance- where it feels comfortable. If your seedlings stretch a lot at this distance, consider using flouros, because your overall temperature is too high.
More mature plants with better roots are more tolerant of heat.
stinkyattic Reviewed by stinkyattic on . Possible? Is it possible to achieve 1 pd off of 600 watts? What is a more realistic number with pretty decent growing skills? Im thinking SOG with Granddaddy purps X moonshine X urkle. Rating: 5