framing new 4k grow - one row of lights or two?

antimatt3r

Well-Known Member
I am going to frame out and drywall a new flower room in my basement, I am trying to decide if I should run two rows of two lights with an aisle down the middle or if I should just do all 4 lights in a row so I'll have maximum overlap of the coverage areas and then have the work/walk aisle along the one side...... the advantage of having all 4 lights in a row is there will only be two end walls and the rest will have 3 overlap areas where the plats are getting light from 2 lights, if I put two rows of two I have then 4 areas where theres a wall instead of 2..............any ideas? I feel like id have better lighting (overlap) with the row of 4 lights but more room to work and walk if I did 2x2 with an aisle in middle........I dunno, but I can do whatever I want since I am building the room to suit, any advice? Thanks! PS going to have the hoods running 4 in a row but the hoods horizontally not flange to flange I feel I will cover more area and have more overlap/less wasted lights if I run them in a row with the flanges on the left and right rather than just stack up 4 lights flange to flange, f2f would be less duct and easier to cool but i feel with the hoods wideways ill get better coverage? Thanks!
 

ShLUbY

Well-Known Member
you will not get any more or less coverage no matter what way your hoods are. they are designed to cover a specific amount of area from the get go so it's just all about placement. if you are smart you will put your hoods flange to flange. I'm sure you know all about air flow in ducting, and the less bends and overall amount of ducting you have, the better your air flow is and cooling 4k is not an easy task.

Edit: also you can buy a lux meter for about 30$ and test how strong your light is on the fringe of another and really line them up properly.
 

antimatt3r

Well-Known Member
its just that the hoods throw the light farther in the one direction than the other, if I do put them flange to flange i might have 5 feet of coverage left to right but at the edge its gonna be dimmer than if I put them the other way and have them throwing light into each other i dunno im not decided yet but I have two rows of 2 lights now and I love that sweet spot in the middle, I feel like I can put the hoods way farther apart if I hang them across instead of in line if that makes any sense
 

antimatt3r

Well-Known Member
if I put them flange to flange its about 200 inches of hood all together in a line, if I space them out sideways I can put a hood each 5 feet and have a 20 foot row

its like this

-=-=-=-=- = 4 in a row flange to flange

| | | | = 4 sideways flanges out, seems like it covers more and theres no "dead zones" actually sweet spots in between


I dunno like I said im still not decided just tryin to figure out
 

antimatt3r

Well-Known Member
it took out the spaces between my vertical marks

-=-=-=-=- 4 flange to flange


--|------|------|------|-- 4 sideways seems to cover more
 

anzohaze

Well-Known Member
Yes way to many bends in that system. Keep it straight as possible for best air flow I would rather be able to walk around entire grow room instead of 1 path if.possible so you can view inspect each individual plant when or if needed. What size you room are you wanting to build
 

antimatt3r

Well-Known Member
the solution to all of this would be just to do two rows of two lights like my room now is, almost a square like this:
this would give me flange to flange AND my overlap/sweet spot... aisle where it says aisle up the middle


<-----hood--aisle--hood----->

<-----hood--aisle--hood----->
 
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