the frame is an octagon made with 1" pvc using eight 1" pvc 45 degree fittings.
the sockets are supported by green 2" mesh plastic fence. it's flexible and strong.
this light is over a year old.
it has 120 pigtail sockets all hung from the fencing material.
simple parallel wiring using 18ga walmart extension cords.
there are two circuits, one inner and one outer. 60 bulbs each.
i didn't built it to use permanently. it is experimental.
it comes out over 100 watts per square ft. and will produce 1500 umols at 30".
but i don't recommend anyone build one like this as it is really too powerful with all the bulbs in.
this is the one that caused the dense plant in my grow above.
not too much light at top dead center but overall too much light hitting the plant.
it did not damage it. it made the nodes in veg too tight. not only was i using this light but it was all 5000k bulbs for the first two weeks.
i had to cut off a bunch of small laterals that would not grow toward the light. extremely tight nodes on these.
once i cut back overall power and removed the affected growth it started growing more normally.
the second two weeks were with 38.5 % 2700k bulbs.
and at the flip, i went to 66.6 % 2700k.
and turned off 60 bulbs by unscrewing 30 bulbs from each circuit in a more open pattern.
this is using 840 watts, which is about 52.5 watts per sq ft over 16 sq ft.
right now I'm using it at 1200 umols which is achieved at 16".
i have just grown a bunch of plants using it at full strength. 6 on and 6off at 1500 umols and they loved it.
this is just proof that every cannabis plant is different and there is no one size fits all.
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