Frank Nitty
Well-Known Member
What does that mean?
DIY with Quantum Boards
- Thread starter robincnn
- Start date
BaconFlowers24
Member
@robincnn & LED community; I require electrical engineering expertise
Howdy,
I am hoping to purchase several of your new {260W XL QB V2 LED KIT}'s. I am a bit out of my element when trying to understand how many lights i will be able to run off of one 120V 20Amp breaker.
It seems like the driver that comes with the kit {HLG-240H-CxxxxA} draws 3 amps, and thus 6x of these drivers can safely run off of one 120V 20 Amp breaker?
From an efficiency standpoint, would yall have any recommendation for running multuple 260W XL QB V2 LED Kits?
should i consider using a 240V driver?
or is 120V best?
run multiple kits with a different single driver?
My overall goal is to run up to 30 kits with the fewest breakers and maintain design efficiency. (universal dimming would also be a big plus)
Thank you for your time,
Bacon Flowers
I like the extended size of the wide heat sinks but am open to any constructive opinions on how to best light up two 125 sq ft bedrooms...
Howdy,
I am hoping to purchase several of your new {260W XL QB V2 LED KIT}'s. I am a bit out of my element when trying to understand how many lights i will be able to run off of one 120V 20Amp breaker.
It seems like the driver that comes with the kit {HLG-240H-CxxxxA} draws 3 amps, and thus 6x of these drivers can safely run off of one 120V 20 Amp breaker?
From an efficiency standpoint, would yall have any recommendation for running multuple 260W XL QB V2 LED Kits?
should i consider using a 240V driver?
or is 120V best?
run multiple kits with a different single driver?
My overall goal is to run up to 30 kits with the fewest breakers and maintain design efficiency. (universal dimming would also be a big plus)
Thank you for your time,
Bacon Flowers
I like the extended size of the wide heat sinks but am open to any constructive opinions on how to best light up two 125 sq ft bedrooms...
Psyphish
Well-Known Member
Do you think it would be possible to flower with the HLG 65? I have a micro grow going and previously I used 5 x 20w E27 LED spots at 2520 lumen each and yielded about 50 grams dry. It's not a lot, but the space I'm growing in doesn't have a lot of room for extra bud. I changed to the quantum board because the bulbs put out a bit too much heat. Would the HLG 65 at 60~ watts be able to produce enough usable light to actually flower a small plant properly?
"With a total of 120 Top Bin Samsung LM561C S6 LED's, this fixture produces 10,000 Lumens with just 65 Watts of power."
"System Efficiency 147 Lm/W" 147 x 65 = 9555...
Which is it?
"With a total of 120 Top Bin Samsung LM561C S6 LED's, this fixture produces 10,000 Lumens with just 65 Watts of power."
"System Efficiency 147 Lm/W" 147 x 65 = 9555...
Which is it?
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619kt619
Well-Known Member
You should only run 80% of your amperage on any one circuit. Running on a 277 volt circuit will increasing the efficiency of the driver allowing more drivers to be put on the circuit. The drivers I have don't get an efficiency boost moving from 120 volts to 240 volts.
So either 16 amps worth of drivers or just under 2,000 watts of total power on a 20 amp circuit.
Volts x Amps = Watts is the formula you use to determine what can be used on any given circuit before the 80% of your total is applied
Humple
Well-Known Member
As long as you're not trying to flower in too large an area, you'll be fine. What are the dimensions of the grow space?
Psyphish
Well-Known Member
35x35x60cm
coreywebster
Well-Known Member
Yeah. No worries.
Humple
Well-Known Member
In that size space, 60 watts of QB is more than enough. I wouldn't even run it at full power.
Psyphish
Well-Known Member
My seedlings are stretching a bit, I had to move them really close to the light.
Humple
Well-Known Member
Oh, that's right, the HLG-65 fixture doesn't have a dimmer... Good luck, and I hope the seedlings do well!
Bubblin
Well-Known Member
all the spam posts earlier.
Frank Nitty
Well-Known Member
Oh, how thou dost offend me...
nfhiggs
Well-Known Member
The HLG-240 series have nearly identical efficiency curves at 240 VAC and 277 VAC.
Definitely run 240 VAC circuits.
With that many drivers it would probably be best to dim with PWM via Arduino or Raspberry PI
I am running 3 qb288v2's on an hlg-185h-c1050b, putting 4 of these over each tray (12 boards total). Wiring the power cords together from the 4 meanwells using 5way wagos so that a single power cord comes from each tray (240v) . I'm looking into the universal dimming as we speak, just made a thread about the trolmaster, if I don't get it figured out soon I'm just going to get the amelech ones from greengenes because his video makes it easy, lol.
619kt619
Well-Known Member
Sorry I meant to say that amperage draws are the same at 120 and 240. running 277 will draw less amps and allow more drivers on a single circuit
BaconFlowers24
Member
@nfhiggs ty for your clear answers very helpful, ill hav to look into PWM
@619kt619 ty for your quick reply
@banke1 i want what you have i think, tyvm for sharing. may i ask is there a reason 3board/driver vs 4
sounds like i just need to get myself a 5way wego and 240v plug with pony tail cable end or something?
@619kt619 ty for your quick reply
@banke1 i want what you have i think, tyvm for sharing. may i ask is there a reason 3board/driver vs 4
sounds like i just need to get myself a 5way wego and 240v plug with pony tail cable end or something?
BaconFlowers24
Member
oh wait what.. would that mean that i can run the same # boards / 20 Amp break 120V and 240V??
I'm in a residential setting currently so 277 would not be the best fit
nfhiggs
Well-Known Member
Thats not true either. 240 draws half the amperage of 120 at the same power level. 277 draws ~15% less current than 240 at the same power.
120/240 service is standard residential in the US, its also know as "split phase" as its drawn from opposite ends of a center tapped/grounded transformer winding.
277 is a singe phase of a three phase 440 service, generally only available in the US to industrial power users.
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Rocket Soul
Well-Known Member
@Stephenj37826 can the hlg prism 80/90cri mix board be bought without the heatsink? Doesnt seem like the webpage gives the option. And at what price for a couple?
With international shipping it makes less sense to have the heatsink, especially as these can be run harder than the heatsink can handle
With international shipping it makes less sense to have the heatsink, especially as these can be run harder than the heatsink can handle
619kt619
Well-Known Member
I have not tested my drivers at 240 volts but the specs on my driver do not give a separate spec for wiring up the driver at the most common voltages (100-240). Besides it is better to error towards the side of caution and the highest power draw so as to ensure circuits are not overloaded.