Help a girl choosing quantum board/driver

Prawn Connery

Well-Known Member
If you area is really 3,5 x 3,5' I would even take two HLG-240H-1750b (b=dimmable).
The HLG-240 has the best price / performance ratio of all HLG drivers.
You can dimm them anytime, but If you have not enough light, you need to upgrade later, result: double shipping costs.
4 boards and two drivers means also you could only use one for vegging and the second only when needed.
I believe I read you are from europe? If so TME is the cheapest place for Meanwell drivers in the EU.
52,50€ + VAT
https://www.tme.eu/de/details/hlg-240h-c1750b/netzteile-fuer-led-dioden/mean-well/
What about the ELG-240 series?

I agree about the HLG-240 series - I've got three of them now. 1 for veg and 2 for flowering (cheaper than a HLG-480).
 

legalcanada

Well-Known Member
just so you're aware, A type drivers are dimmable as well, they have a built in potentiometer on the driver you can dim with a small screwdriver. A type drivers are also able to turn up higher than the wattage displayed and B drivers are not.

my 2x HLG-320 can turn up to almost 700 watts, if you had 2x HLG-320 B drivers your max would be 640
 

Green.Lady

Member
@legalcanada thats intresting.. i dont know mutch about dimming, thanks for the heads up,iam learning as i go lol so with the type B ive to buy sort of a potenciometer ? And the A with a screwdriver and how i check for the voltage on the type A? Ive a multimeter lol
 

legalcanada

Well-Known Member
yes with the b type you need a separate potentiometer. i'm not sure about checking voltage, i have my lamp plugged in to a killawatt meter or whatever so it tells me wattage etc. in this picture, the small black circle is a rubber cap and if you remove it you can insert a small flathead screwdriver to turn it up or down but it doesn't display current itself

 

Green.Lady

Member
yes with the b type you need a separate potentiometer. i'm not sure about checking voltage, i have my lamp plugged in to a killawatt meter or whatever so it tells me wattage etc. in this picture, the small black circle is a rubber cap and if you remove it you can insert a small flathead screwdriver to turn it up or down but it doesn't display current itself

and if i put the multimeter in there ? Will show me the voltage ? On the type A
 

Shawndeadhead

Well-Known Member
Hello guys. I want to buy 3 qb, ive been searching and iam confused about the driver that i should use to power 336 qb. My plan is to wire 2 qb 336 in series for a 3,5x3,5 or 4x4 flower tent and another 336 for veg. I contact two sellers, one say this about the board.
1. Board size: 305*358MM.
2. Circuits: 24S x 14P.
3. Max current: 2100mA.
4. Output: 69.6V.

Otherseller says: max current 2800mah and 68v

What you guys think 3000k for flowering and 4000k for veg ? And what driver should i buy ? Or perhaps other qb board ? Heeelp meee :) thaanks
I'm still stuck in DIY COB land lol did you get your boards put together? This is what I'm doing with 500w from meanwell drivers through bridgelux Vero cobs. Let me know how they worked out for you, I'm getting ready to get a warehouse and been trying to decide more cobs or a board build.
So far on Cobs I've gotten up to getting just over 2 lbs on average out of 500w per 4x4 IMG_20171126_224433.jpg IMG_20171126_225948.jpg IMG_20171126_225232.jpg IMG_20171126_230432.jpg IMG_20171126_230104.jpg IMG_20171126_225719.jpg IMG_20171126_230112.jpg IMG_20171126_225931.jpg
 

Shawndeadhead

Well-Known Member
yes with the b type you need a separate potentiometer. i'm not sure about checking voltage, i have my lamp plugged in to a killawatt meter or whatever so it tells me wattage etc. in this picture, the small black circle is a rubber cap and if you remove it you can insert a small flathead screwdriver to turn it up or down but it doesn't display current itself

Those are simple and what I picked for my lights, yes you can't tune in specific numbers it's either full power or half so a 1400 mAh unit would put out 700 mAh. Easier than soldering in a potentiometer if you don't have a lot of experience with soldering or it's also just one less point of fail buying one with adjuster built in.IMG_20171102_000051.jpg
 

legalcanada

Well-Known Member
i don't think it's only full power or half because i'm able to dim anywhere from 260-700 with my 2 drivers. they are currently @ ~550w slowly cranking up during the first weeks of flower
 

Shawndeadhead

Well-Known Member
i don't think it's only full power or half because i'm able to dim anywhere from 260-700 with my 2 drivers. they are currently @ ~550w slowly cranking up during the first weeks of flower
I've only seen 2 settings come across my Fluke multimeter on mine the full 1050mAh and 525mAh, but I only use that for the first day of 12/12 because I veg under 150W so I give them one day at 250w before turning it up to 500w.
It does state in manufacturer paperwork and PDF on these that it's only supposed to be half or full on the adjuster. If your getting multiple readings across a range you may have a malfunction, I would email Meanwell customer service to be sure that it's not situation that can lead to a problem.
 
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legalcanada

Well-Known Member
well i have 2 drivers connected to a single plug, but i was able to go from 250, 450, 550 etc on my killawatt meter. so idk
 

legalcanada

Well-Known Member
i tried finding that information in the PDF (<-- hyperlink) but was unable.. all I could find was adj. range 700ma-1400ma and output voltage 114v to 229v. are you sure it didn't say you can dim between 50 to 100% and not one or the other? i think if that were the case a toggle switch would be more fitting than a dialable knob
 

Moflow

Well-Known Member
i tried finding that information in the PDF (<-- hyperlink) but was unable.. all I could find was adj. range 700ma-1400ma and output voltage 114v to 229v. are you sure it didn't say you can dim between 50 to 100% and not one or the other? i think if that were the case a toggle switch would be more fitting than a dialable knob
Mine work like yours, the A drivers.
Plug it into kilowatt meter stick screw driver into driver and the watts go up or down as do the amps. I can set light at 100w to 220 watts and anything inbetween
 

legalcanada

Well-Known Member
yes mine is a C series (constant current) so perhaps there are different types or something, it seems like with electronics and DIY there is a million different gizmos and gadgets or ways to customize things, it can be overwhelming for me at times
 

Shawndeadhead

Well-Known Member
Yeah that's what I'm running HLG-240c-1050a, well 2 of them for every 4x4 area, could be a number of things causing the numbers to be different, and could be just different model years where yours had a sweep range and mine has just 2 set points I bought these 2 years ago or so IMG_20171102_000029.jpg
yes mine is a C series (constant current) so perhaps there are different types or something, it seems like with electronics and DIY there is a million different gizmos and gadgets or ways to customize things, it can be overwhelming for me at times
 

Green.Lady

Member
What about the ELG-240 series?

I agree about the HLG-240 series - I've got three of them now. 1 for veg and 2 for flowering (cheaper than a HLG-480).
I cant use the elg 240 1750mah for 2 of this boards right ? Each board have 69.6V x2=139.2 and the other board they make are 68v x2 =136 and the driver have 137v max lol tight fit :p
 

Green.Lady

Member
@Shawndeadhead thats a awsome grow :) you should be proud eheh i plan to run the 4 boards just a little bit under 100w each, only because my eletrical bill is a little expensive, i will see as i go, iam still to green in this mah volts watts math problems stuff :p
 
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