DIY with Quantum Boards

Budzbuddha

Budzbuddha

Well-Known Member
Hempy quantums...

Plants have really stepped on the gas since last week .
Still 18/6 ( 3000/4000k mix )
GH Maxigrow ( powder )
@5.9

They are heavy drinkers and am a every other day water/feed .
I also did some light crop and LST on them .
Quantums have kept canopy heights level ( where some other lights with hot spots might have looked different ) .....

Gonna see what another week looks like before deciding on flip ....
The Thrive Alive Red is added to in between watering once a week .

2E4BBC41-4F27-4381-AD6C-D6F1085F0BF9.jpeg
 
S

shimz

Well-Known Member
pop22 said:
An HLG480H-C3500b will give you about 180 watts per board. Remember what I said though, the heatsink run passive are only good to about 150-160 watts. You'll need to design and build a mount for fans over the heatsinks. An HLG320H-C1400b will run them at about 150 watts each.
Click to expand...
I would like to add that with the 480 rec he'd have to parallel the current and series for the 320.
 
CoB_nUt

CoB_nUt

Well-Known Member
Question. Hlg240-H-c2100 is supposed to put out 240 watts correct? I'm only getting 220 watts at the wall(kilowatt meter ), I disconnected the pot thinking maybe it was a bad solder job, no dice. Still 240 with the pot off.
Only thing I can think of next is the wire I used for the AC is slightly smaller than the wires+housing of the drivers AC outputs.
Any thoughts. Gonna go hack up another bigger AC plug to match the mean wells dimensions.
 
S

shimz

Well-Known Member
Sounds about right: 4 qb120 boards in series, should be around 23.5V per board, so 94V total times your constant current of 2.1A=197.4W. Taking into account driver and wire losses, 220W at the plug is within spec.
 
CoB_nUt

CoB_nUt

Well-Known Member
Ahh ok thanks @shimz. Thought I was loosing my mind. I went thru every connection and even replaced the AC wire.. I thought the 240 would give me 240 watts. My bad.
 
S

shimz

Well-Known Member
Heh, no biggie @CoB_nUt this stuff isn't exactly straightforward. If you had a series voltage right at the max of this driver (119V) only then can you get the full rating. 119x2.1=239.9
 
CoB_nUt

CoB_nUt

Well-Known Member
shimz said:
Heh, no biggie @CoB_nUt this stuff isn't exactly straightforward. If you had a series voltage right at the max of this driver (119V) only then can you get the full rating. 119x2.1=239.9
Click to expand...
I don't quite understand. How do I get a series voltage right at the max of my driver to get the full rating?
 
S

shimz

Well-Known Member
CoB_nUt said:
I don't quite understand. How do I get a series voltage right at the max of my driver to get the full rating?
Click to expand...
Well, there is something you could do to increase your series voltage: Add a board! 23.5x5 is 117.5V which would get you 117.5x2.1=246.75W. Those watts would then be shared by 5 boards instead of 4, but your overall system efficiency goes up nicely.
 
Last edited:
CoB_nUt

CoB_nUt

Well-Known Member
shimz said:
Well, there is something you could do to increase your series voltage: Add a board! 23.5x5 is 117.5V which would get you 117.5x2.1=246.75W. Those watts would then be shared by 5 boards instead of 4, but your overall system efficiency goes up nicely.
Click to expand...
Ha!!! Ahhhh ok....understood. Thanks again @ shimz
 
dannykay

dannykay

Well-Known Member
Lavenders harvested, dried and went to the jars to start the cure.
If anyone is on the lookout for a fantastic skunky strain, with insane aroma and flavor, Lavender by soma seeds would be a perfect choise.


Things are looking okay for the mix in tray#2,
Most of them are week 4-5 with the exception of liberty haze (right side of pic) that should be ready next week.

Finally found the time to hook up a qb120 board to the propagator space

Small veg tent

Larger veg tent


Stay safe
 
Budzbuddha

Budzbuddha

Well-Known Member
Hempy Quantum- We got Bush

Hempy gas pedal smashed to floor these plants are getting all junglefied in no time !
Running 320watts at moment . Growth is hella fast. All green , woody branches.
Just a wee bit LST on them .....

Ridiculously pungent , so got to get that addressed.
Maxigrow is on point ... 1 tsp per gallon water , nothing else.

Flipping might be sooner 5han later.

That Runt BD really came around ..... it was that one leaf mutant . But now looks like a champ.

ADE08633-03D6-47F8-A3B6-85AD2BB9FBCE.jpeg 0D07D3D3-45C5-4E8A-90B1-84FE817D4598.jpeg 70EBD2F8-521D-43C1-A63C-15F582E702F5.jpeg D53E5297-33E8-4013-9BFF-A49EB05B5ADA.jpeg B16D3BB3-2565-4D4B-892A-BB505FED7064.jpeg
 
pop22

pop22

Well-Known Member
that's not how drivers work. you get the max Amperage to each board that the driver is rated for. If its say, a HLG320H-C1400, each board gets 1400 ma, at the board rated voltage, a QB288 running at 1400 ma uses 47.7 volts, giving a watt consumption of 66.8 per board.

HLKG has a chart with all this info for each board.

Simple answer, the watt rating of a driver only indicates its maximum potential, not what it will supply to your boards. This is why its a good Idea to read the info HLG provides so you can make the best match with a driver for your set up. You need to read the driver data sheets also. They are easy to read and help you determine how many boards/cobs you can run on it.


CoB_nUt said:
I don't quite understand. How do I get a series voltage right at the max of my driver to get the full rating?
Click to expand...
 
Stephenj37826

Stephenj37826

Well-Known Member
shimz said:
Heh, no biggie @CoB_nUt this stuff isn't exactly straightforward. If you had a series voltage right at the max of this driver (119V) only then can you get the full rating. 119x2.1=239.9
Click to expand...
CoB_nUt said:
I don't quite understand. How do I get a series voltage right at the max of my driver to get the full rating?
Click to expand...
pop22 said:
that's not how drivers work. you get the max Amperage to each board that the driver is rated for. If its say, a HLG320H-C1400, each board gets 1400 ma, at the board rated voltage, a QB288 running at 1400 ma uses 47.7 volts, giving a watt consumption of 66.8 per board.

HLKG has a chart with all this info for each board.

Simple answer, the watt rating of a driver only indicates its maximum potential, not what it will supply to your boards. This is why its a good Idea to read the info HLG provides so you can make the best match with a driver for your set up. You need to read the driver data sheets also. They are easy to read and help you determine how many boards/cobs you can run on it.
Click to expand...

Most Meanwell HLG series drivers give 5-10% more current than they are rated at. Just an FYI.

It is also a good idea to leave a few volts on the driver. 95% utilization is about the most one should try for. Running them at full utilization can lead to premature failure depending on driver case Temps.
 
You must log in or register to reply here.
Top