DIY with Quantum Boards

regoob eht

Well-Known Member
Hey everyone, was able to get my hands on 4x qb120s @ 3000k. I already have 6x cxb3590 and 2x qb288s up top. I also have 2x mean well lpc-60-1050 drivers hanging round from a previous project.
I can drive 2x qb120s per driver, about 20watts per board (i think). I was thinking side lighting. Hang 2 boards on either side of grow for better coverage down low.. Would this be worth it at such low current?? Would it be worth it at a higher current?? Any thoughts, ideas, arguments are welcome. Thanks.
 

pop22

Well-Known Member
Great looking plants! What size tent they in?

Day 14 of flowering with the additional qb120s on my rig. Plants are looking healthy and happy so far, what do you think? Qb120s are at 100% running on 2.1a driver, cobs around 80% on a 1.75a driver.

This pic is from yesterday, hopefully this was the final round of defo


Pics from a few hours ago


 

Ryante55

Well-Known Member
Day 14 of flowering with the additional qb120s on my rig. Plants are looking healthy and happy so far, what do you think? Qb120s are at 100% running on 2.1a driver, cobs around 80% on a 1.75a driver.

This pic is from yesterday, hopefully this was the final round of defo


Pics from a few hours ago


If I were you I would defoliate a bunch more the bottom foot of those plants won't get any light later in flower. Plants look great what nutrients?
 

dannykay

Well-Known Member
If I were you I would defoliate a bunch more the bottom foot of those plants won't get any light later in flower. Plants look great what nutrients?
I'm pretty sure they are in the final stages of the stretch, and I'm still getting great light pentration at the bottom. You right tho, I'm hoping I won't be too lazy and have another round this week.

I'm using advanced nutes, bloom ab, and bud candy, rhino skin, big bud and sensyzim. Will add in 2 weeks some monster bloom by growtek to replace the big bud. I used bud ignitor as well in the first 10 days of flowering.
 

Humple

Well-Known Member
Hey everyone, was able to get my hands on 4x qb120s @ 3000k. I already have 6x cxb3590 and 2x qb288s up top. I also have 2x mean well lpc-60-1050 drivers hanging round from a previous project.
I can drive 2x qb120s per driver, about 20watts per board (i think). I was thinking side lighting. Hang 2 boards on either side of grow for better coverage down low.. Would this be worth it at such low current?? Would it be worth it at a higher current?? Any thoughts, ideas, arguments are welcome. Thanks.
At what distance from the plants were you thinking of running the QB120s?
 

regoob eht

Well-Known Member
At what distance from the plants were you thinking of running the QB120s?
That's a good question. I would be able to run them at 16" away from plants at max, though moving them closer is no problem. What distance would you recommend if using the lpc-60-1050? Thanks!
16" ( or closer) on either side. Was thinking 2 boards per side.
 
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Humple

Well-Known Member
That's a good question. I would be able to run them at 16" away from plants at max, though moving them closer is no problem. What distance would you recommend if using the lpc-60-1050? Thanks!
16" ( or closer) on either side. Was thinking 2 boards per side.
I can only share my (admittedly limited) experience. I run four 120s in series on a single fixture, and have only completed the last two-thirds of one full run under them. I've run them as low as 50w per, for 200w total, at 18 inches; and as high as 63.5w per, for 254w total, as close as 8". I finally settled on full power at 12" for the majority of the flowering time. I would imagine that you could park them within a few inches if run at 20w, but you may find the plants can take a lot more than that.

The veteran LED growers may be able to give you better advice.
 

regoob eht

Well-Known Member
I can only share my (admittedly limited) experience. I run four 120s in series on a single fixture, and have only completed the last two-thirds of one full run under them. I've run them as low as 50w per, for 200w total, at 18 inches; and as high as 63.5w per, for 254w total, as close as 8". I finally settled on full power at 12" for the majority of the flowering time. I would imagine that you could park them within a few inches if run at 20w, but you may find the plants can take a lot more than that.

The veteran LED growers may be able to give you better advice.
Cool man, thanks. Ima just spend the money and get a bigger driver, probably some good deals floating around out there today.
 

Kofeef

Member
I can only share my (admittedly limited) experience. I run four 120s in series on a single fixture, and have only completed the last two-thirds of one full run under them. I've run them as low as 50w per, for 200w total, at 18 inches; and as high as 63.5w per, for 254w total, as close as 8". I finally settled on full power at 12" for the majority of the flowering time. I would imagine that you could park them within a few inches if run at 20w, but you may find the plants can take a lot more than that.

The veteran LED growers may be able to give you better advice.
What driver are you using to run 4x120s in series?
 
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