DIY with Quantum Boards

pop22

Well-Known Member
Well, if it was going to happen to someone, it will be me........... yep, my Meanwell 320H-C2800b crapped out, stone dead. I should have known, the dimmer never would work and now the driver is stone cold dead.

Fortunately, when Tasty LED went out of business, I bought some drivers at 1/2 price, so I'm substituting a 240H-C2100b as its the best I have. Will be interesting to see how the light, a 4 board QB304 array works with this driver.
 

Humple

Well-Known Member
Well, if it was going to happen to someone, it will be me........... yep, my Meanwell 320H-C2800b crapped out, stone dead. I should have known, the dimmer never would work and now the driver is stone cold dead.

Fortunately, when Tasty LED went out of business, I bought some drivers at 1/2 price, so I'm substituting a 240H-C2100b as its the best I have. Will be interesting to see how the light, a 4 board QB304 array works with this driver.
Sorry to hear that, man. What size space?
 

Moocat87

Active Member
Looking for some more advice :) I am putting together a 3x3 QB132 array for my 4'x4' tent. So far I have one row done and currently running, and those three boards are powered by an HLG-240H-C1750A. They're pretty bright, and I plan to run them at less than max output to get some more efficiency... but I'd like the ability to crank them to their max 2000ma current if I have good reason to do so. Would it be safe to run the remaining two rows on an HLG-240G-C2100A (1 driver for each 3 boards)? I imagine I'd just need to keep the internal pot turned down a little below max and confirm with a multimeter that the current is <= 2000ma. Do I have that right?

I like the idea of having 3 rows of lights that can be dimmed, raised, and lowered separately -- it's a compromise between one giant fixture and tons of individually adjustable lights. I like to grow a variety of plants at once, so having the ability to put the short plants on one side and tall ones on the other is pretty attractive.

Here's some stuff I learned since my last post. Hope it helps someone!

- Making an aluminum frame is much easier if you use rivets instead of self-tapping screws. I just clamped the pieces together, drilled 4mm holes for everything, and riveted the corners with 4mm aluminum rivets.
- A "center punch" really helps you drill your holes where you intended to. I tried a few different types of bits before I got a center punch and they all wandered a bit before digging in.
 

Gramsterdam

Active Member
So I have 8 qb 132s and 2x 240h c1750 drivers - my question is what kind of wire do I need to run from the drivers to the boards in series ? - I have some standard 20/2 low voltage wire - will this do?
 

The Loafter

Well-Known Member
I got 18/2 solid core from home depot. Had to get an associate to cut it for me. Seemed like a fair price. Black and red wires. They're encased in another layer, strip that off. Garbage.
 

Rakin

Well-Known Member
QB132 vs QB120

Any real advantage to using 4xqb132 over 4xqb120? I’ll be getting an hlg-240 either route I go. I was figuring since I already have 2 qb120 and 3 qb96 in the 24v arsenal that if I’m not going to see much benefit to the qb132 why add another voltage
 

conversekidz

Well-Known Member
QB132 vs QB120

Any real advantage to using 4xqb132 over 4xqb120? I’ll be getting an hlg-240 either route I go. I was figuring since I already have 2 qb120 and 3 qb96 in the 24v arsenal that if I’m not going to see much benefit to the qb132 why add another voltage
yes, 48 more led's, makes it more better

More led = more lumens (at full till you are leaving 5000 lumens by using the out dated QB120)

purchasing the next board ensures you are using fresh led's, and led's should be replaced at the same pace as HPS bulbs
 

Rakin

Well-Known Member
yes, 48 more led's, makes it more better

More led = more lumens (at full till you are leaving 5000 lumens by using the out dated QB120)

purchasing the next board ensures you are using fresh led's, and led's should be replaced at the same pace as HPS bulbs

48 leds I get. But will the 4 qb 132 pull as many watts as 4 qb120 off a hlg-240 and produce that much more light is what I’m really getting at.

I really don’t understand your last statement. They use the same diodes and you don’t replace leds like hps.
 
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