Hey John…
- Exhaust:/ Intake…. Primarily this is for temp control but gives you flexibility to switch from positive to negative pressure depending on circumstances. When the lights are cranking mid day you may have to add some cool intake…. Or if you need to control odors for a period you can switch to negative… etc, etc. I always like to have two running incase one were to fail… it could destroy your whole tent by time you woke up.
Oscillating fans…. Yes, air movement strengthens stems. Also moves the leaves and allows the to transpire easier when it’s hot. It also prevents mold from growing on your plants and pests hate circulation. I have fans blowing every where but try not to blow to direct on a plant. It’s really breezy outside… I like to feel a vortex of airflow gently moving the stems no matter where you are in the tent.
- Lighting…. I have three 550s, a spectra max 1000, and another 450w not in use over an empty quad…. Obviously the biggest investment of a set up. I don’t recall what I paid as I picked em up on done sales. … but I have over 3k in lights in the 8x8. I have many other lights…most now being utilized for veggies.
The 550s run a little hot but they’re the best I’ve ran in flower. They will push down to the mid and lowers in ways bar lighting just cannot…. Plus the heat will resemble the sun more and you can run them higher for a better overall spectrum in your tent. Also, they make it super easy to adjust for uneven canopies which can be common place with a lot of autos.
The 550s are fully programmable with controller. You can set up to 20 settings per day. You can individually adjust Red, White, and Blue from 0-100%. So for example my day my start out 89r/40w/40b and gradually change into a blistering 80R/90w/90b and then fade back to red for sunset. And you can preset all your programs (seedling, veg, stretch/stack, finish) with the 20 settings each.
I use them exclusively to flower with and veg under the Soectramax1000. The SM1000 is only RW but is fully compatible and can be daisy chained and ran through same controller. It just ignores the blue commands, but white and red can be adjusted separately.
Most lights will have a prearranged spectrum and will be dimmed together so only the intensity can be adjusted for most budget lights. However you can always add far reds or UV if you see a need.
My recommendation is to buy the best lights you can afford. For a 4x8 you will want two of the AC infinity or equivelant (4-500w/each) I can tell you there is no comparison in the lushness of the plants and the density of the nugs way further down. Research the diodes and the components. The 550s are very reasonably priced. I would start with two or an equivalent premium light. Imo no bar light out there can do what this type of light can do in flower. There are other great lights as well… a lot is just preference and what works for your environment. Keep in mind the 550s use only about 3amps each when cranked which is super efficient and easy on your circuits.
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Earthbox - it’s a 10g rectangular box. Has a grate the soil sits on and leaches what’re from the bottom corners. Perfect for autos… plant on one side and Jam Pack the other side with goodies. Throw a gallon of water in every time the bottom is dry. Once your box is built, it’s pretty maintenance free the entire cycle other than some pruning/training. Pull the root ball, reamend and your ready for the next run.
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4x8 is plenty to run 3-4 photos. Or 4-6 med-lg autos.