Airwalker16
Well-Known Member
Actually, the LRS series holds the spot of having thee most efficient driver MW manufactures. Can't remember which one it is exactly, but damn near every single one from 50-350 is 90% or higher.
DIY with Quantum Boards
- Thread starter robincnn
- Start date
Humple
Well-Known Member
Per the datasheet, the highest efficiency LRS-350 is the 350-48, at 89%; the rest range from 79.5 to 88.5. By contrast, the highest efficiency HLG-120 models are the 120-48 and 120-54, both at 93.5%; the rest range from 92 to 93.
Airwalker16
Well-Known Member
And it's quite similar in the LRS models in that lower wattage range of 100/150 as well. 89, 90's. You're comparing a 350 to a 120.
"QB 288 V1, QB 288 V2 and QB 288 V2 R spec have 50V-54V DC forward voltage and same driver options will work for all.
DO NOT wire different version boards in parallel. For parallel wiring it has to be all QB 288 V2 R spec or all QB 288 V2 or all QB 288 V1 boards on a driver."
Edit: From HLG qb guide page.
Humple
Well-Known Member
Yeah, I just grabbed the sheet for the 350, as that's the LRS most frequently put forward, but as you stated it's similar across the range; the LRS-150 tops out at 90%, for example. Have yet to find one in the series that exceeds the HLG models' efficiencies. Which one is "the most efficient driver MW manufactures"?
Can anyone point me to a/the good thread or post that does well to explain the calculations for taking manufacturer specs (such as on hlg website) and calculating ppfd, etc (especially for custom builds). I'm just looking at the qb guide page and I need a refresher course.
Thanks.
Thanks.
ilovereggae
Well-Known Member
Yup that is why I said I am going to do them in series. A little further down that same page, it states:
"NOTE: Boards purchased in multiple orders may be from different batches may have different voltages and may not work share equal current if connected in parallel. Use them in series to avoid some boards pulling more current than others."
I am pretty sure someone on this thread asked this a few hundred pages back and someone from HLG said different versions would work fine together in series. Should I email HLG and confirm before I go this route? I guess I could order 2 more v2 boards for one of the shelves, wouldn't cost that much more.
GBAUTO
Well-Known Member
The Vesta rig I use works out to about 3700k with both channels running and it produces some dank flower.
Humple
Well-Known Member
Something like this?
PPF to PPFD Calculator
Enter Total PPF output of Lamp in µmol or PPF. To calcualte this simply multiply the efficiency of the LED lamp with its power. A 2.5 PPF/W or 2.5µmol/j lamp with 480 watts will have 1200 µmol or PPF output. Enter Length and Width in feet. These are the dimensions of your target area. Percentage...
horticulturelightinggroup.com
Honestly, I'm not sure.
So there could be issues if you make an order of several boards, then 6-12 months later order more of the same boards, and end up using some from each order to make a parallel build? Fuck sake. Hah :/
HolyAngel
Well-Known Member
You shouldn't have any issues at all running them in series. That's how I would wire them if you have multiple batches or different board types, and yeah, what HLG recommends.
TWest65
Well-Known Member
Yes, you can mix boards with CC drivers, as long as your within driver specs.
For example, with an HLG-240H-C1400A, you could connect a QB96, a QB288 and the 24v QB18 in series, with no problem.
ilovereggae
Well-Known Member
I just realized something. The HLG120H-54A that I have that came with my original DIY kit, is what they recommend for parallel setups with multiple boards. For series they recommend the HLG120H-C1400. Can I use the 54A driver to run 3 288 boards in series? Or am I stuck with it as a single board/driver kit now since we can't mix boards from different orders to run in parallel?
HolyAngel
Well-Known Member
You can still run 3 boards in series off the 54A. they're only going to get like 40w each at most but yeah, should work just fine.
ilovereggae
Well-Known Member
Cool thats exactly my plan. Thanks!
Chip Green
Well-Known Member
Well I finally pulled the trigger today, ordered a 135 V1 kit.
I kept recommending that deal as of late, with the idea that "I can't even build from scratch, for that price right now"
Since I have a seed making project, about to start in a 2x2 tent, needing a light build, I recommended that kit to myself.
But damn those 96ers are tempting....
I kept recommending that deal as of late, with the idea that "I can't even build from scratch, for that price right now"
Since I have a seed making project, about to start in a 2x2 tent, needing a light build, I recommended that kit to myself.
But damn those 96ers are tempting....
HolyAngel
Well-Known Member
man, right? I passed on them for the 3rd time and picked up 2 of the v2 qb288 4k's for veg. Maybe one day..
Chip Green
Well-Known Member
That's exactly why I didn't get those (yet)....I didn't want to get power hungry (I would have) and be stealing the light from my seed maker!