LEDgardener

3.5 ft x 12ft tables

I want to 6 drivers
With 26 4ft bridgelux Strips
And 30 1ft strips
3 drivers for the 4ft Strips
3 drivers for the 1ft Strips

What meanwell drivers would you pros recommend and what wiring sequence?

The squares in the center are 315w LEC.

I am building 12 of these tables.

Trying to get maximum ethicacy

I forgot to say I want to split each table up into three sections like this

Interesting design!

If I understood right, you want to use 3 drivers for the 1foot strips, so 10 feet per driver. Then you want 3 drivers for the 4 foot strips, so that is 34.66 feet per driver.

Are you planning on using different drivers, or do you want to create a 'hot spot'?

Seems you are aiming for a pretty high ppfd, do you use co2?

Yes I am going to run Co2.

after I posted this I thought maybe running me 2 foot strips in place of the 4ft strips so I can run different color spectrums throughout the build.

I figured for each 4-foot section I can get away with the meanwell 480h 24 bridgelux strips.. and 10 1 foot strips with a 240 driver.

But I have never built any of these before so I seriously don't know what I'm doing.

I would like to figure out a way to get some of the new blue diodes and the Deep Red diodes kind of like what is on the chilled boards into the mix as well.

I am trying to start a commercial grow without taking on investors and I need to figure out a way to do this and as efficient as possible.

I guess there are two ways to get at a tunable frequency, one is using different temperature strips... it means double the strips and either double drivers (for true tunability) or just double strips with on/off switches. The other option is the 90cri bridgelux vesta strips which have a line of 2700k and 5000k, but which have about 7% less active photons. The 90cri strips have the extra advantage of deep red, so with them you don't need the extra red diodes.

Hard to say which one is a better choice, one involves higher upfront costs, and the other involves higher running costs.

Since the commercial environment is getting increasingly competitive, I think you should be aware of your weak links when designing your system. Are the LEP's 3-400w? and you plan on adding another 100w per LEP with the leds? How high do people normally run these LEP fixtures?

Also I'd like to say that while my system is tunable, I'm not sure how much I will actually be tuning temperatures with it. I'm planning on building a system with about 450w in side lighting and 150w up top. I'll try to grow plants till the top of the tent, and have solid nugs all the way through.

It's to test space efficiency, but also I'd like to see if I don't get more with 600w wrapped around the plants, rather then 600w blazing on top of the canopy.

I think I might need the tunability to speed up a slow growing indica or slow down a stretcher.

Assuming 37.5w/sf, and the cmh hole is ~17"x24" or ~2.8sqft, and go with 24 4' strips, not 26.

Area of 1/3rd panel: 4'*12.5'/(3)=16.7, minus hole: ~16.7-2.8=~13.8 square feet. 13.8*37.5w/sf=519W per 1/3rd of the panel.
Split that power at a ratio of 10:32: 120 to the 1' strips, 400W to the 4' strips.

400Watts to (8) 4' BXEB strips is really pushing them at their limits. Maybe redo all the calcs with 35w/sf or consider adding more strips?

With 35w per square foot, you should be hitting 880ppfd (without the LEP) as long as the light is evenly distributed. Thats assuming the EB-gen2's produce 2.8umol, which I think is pretty close. That should be fluence spydrX+ territory, pretty optimal for a co2 grow.

Running hard or soft, adding strips or more heatsinking is really a balancing act, and on paper it should settle itself mostly by looking at numbers. Running hard uses a bit more electricity, but might have lower upfront costs. Depends on the price of heatsinking. Running soft brings the extra benefit of more even light distribution, and longer life of diodes. In my case any aluminium extrusions were so expensive it was cheaper to buy more strips and run them soft.