I need some driver help...4x qb288 v2

[Complex]

I'm deciding now on a 6 QB 288 setup (that might be a mix of V1 and V2 boards, would that be an issue - I don't know) I'm trying to figure out now if that same setup I described above would be just as doable with the new inventronics programmable cc driver line (EUD.....DTA/DTL, I think).

if you run series, you can mix any voltage you want as long as it stays when in the drivers v range.

parallel on a cc+cv should "also" work.. I just wouldn't mix a v1 and v2 inline on one set parallel.. do two or three v1's inline then two or three v2's etc.

http://www.inventronics-co.com/product/eud-600sxxxdt/ the EUD-600S12ADT would be our hlg-600h-54b. Im not sure if that's the programmable one..

(Don't mean to jack your thread Woolster..)

Yup, the EUD-600S210DT is. You can use the search+filter on inventronics website to hit the "+" button next to "constant current" filter, then select "programmable".
Videos on programming on youtube, looks like you connect to PC, and choose an output current, dimming method, kinda cool.
Looks like "Adjustable Output Current Range 0.168–2.10A". Check out the spec sheet: http://www.inventronics-co.com/wp-conte ... Rev.-E.pdf

It's been suggested not to use a 320h-c2100 on a pair of QB 288's, and I've also read not to use the 600h on four QB 288's (though growerlights sells a kit with it, and you've used it too so...?).

I wonder if the inventronics EUD-S600 has an advantage with that feature and being "cc", over the HLG-600h. If I can get one driver to safely run 4 QB 288's at about 140-150w each, that'd be cool too.

[Woolster22]

So I shouldn't run 4x288s on a HLG-600h-48a?

[Jolly Green Giant]

So I shouldn't run 4x288s on a HLG-600h-48a?

4 288's on a 600 is going to push the heat sinks to the max...( rated for up to 260w on a slate 2 double) if you planned on adding 2 or more boards in the future, you should be able to get away with running them for awhile... I went a year pushing my hlg480h-c2100b max on slate 1's ( 1's only rated for 100w.. I was pushing 110 range) then added 2 more boards a few weeks ago..( edit: also swapped to 480h-54 so I could run 6 boards)

pretty much they just ran on the warmer side of what they should of... it could not effect them at all.. or they might only last 5 years instead of 7+... I'll let ya know a few years from now

safe bet if you don't plan on upgrading any time would be the 480

[Woolster22]

So I must have ordered the wrong thing, the 4 288v2 and 4 single slate 2s showed up yesterday. The slate 2s are rated for 100-150w for singles, so I believe I'm good running the 600? Thanks for the help, I dont want to fry a couple hundred bucks worth of leds...

[Woolster22]

And feel free to jack the thread, the more info the better.

So I just jumped on a hlg-600h-48a. The plan is to run the 288v2s somewhere around 2500 mA (~49.6v, the 48A maxes around 50.4) keeping the w/board around 120. So each output from the driver will be running 2 boards in parallel, for a total of ~5A, and 240ish watts, just under 50v. Keep in mind I jumped on some v2s, so if the numbers seem off to some, that is why (v2 runs [email protected] for 118ish watts, and about 177 L/w=20886 lumens/board. V1 runs [email protected] for 124ish watts and about 164 L/w=20212 lumens/board). Ultimately I'll probably try to add 2 more boards, running them all around 2mA-2.1mA and roughly 100watts each, getting about 18k lumens/board, for a bump of roughly 30k lumens over the 4 board set up.

If I am smoking crack and have this all wrong, please tell me!

[Jolly Green Giant]

If I am smoking crack and have this all wrong, please tell me!

Lmao! your pretty much dead on my friend I'm still learning these v2 numbers

[Woolster22]

If I am smoking crack and have this all wrong, please tell me!

Lmao! your pretty much dead on my friend I'm still learning these v2 numbers

Awesome, I appreciate the help/reassurance! Just want to make sure I wouldn't have been better off torching a few c notes instead of wiring all this up.

To continue my edu-macation...so what's the deal, running ~30 288s at ~20w is more efficient than 4 at 150 (assuming voltages/current is safe, looking at the spec sheet...)? So I guess finding the sweet spot between build cost and overall efficiency is the idea?

[Jolly Green Giant]

If I am smoking crack and have this all wrong, please tell me!

Lmao! your pretty much dead on my friend I'm still learning these v2 numbers

Awesome, I appreciate the help/reassurance! Just want to make sure I wouldn't have been better off torching a few c notes instead of wiring all this up.

To continue my edu-macation...so what's the deal, running ~30 288s at ~20w is more efficient than 4 at 150 (assuming voltages/current is safe, looking at the spec sheet...)? So I guess finding the sweet spot between build cost and overall efficiency is the idea?

yes.. the multiple boards ran lower will always have a better lum/w or umole/j.... ( efficacy) but since the wattage is lower, you need more of the boards to equal the same amount of light output..

example.....( using hlg website numbers for 2100 ma and 1050 ma for v1 288's )

4 288v1 boards ran at 2100 ma = 429.4w... while at 2100 ma they put out a 167.3 lum/w avg.. so 428.4 x 167.3= 71,838.62 lumens..

now... running 4 288v1's at 1050 ma puts you at 205.6 watts.. at that ma they do 183.6 lum/w.. 205.6 x 183.6 = 37,748.16 lumens.. which is slightly higher than half of the 2100 ma lumen count... I tried 6 & 7 board number comparisons... both still under that 71k that 4 at 2100 ma gives off.. so 8 288v1's ran at 1050ma each gives ya 411.2 watts.. 411.2 x 183.6 = 75,496.32 lumens...

So we figured out... using half the current input, you need twice as many boards to get slightly more lumens with slightly lower wattage... but double the cost

hope my rambling helped lol

[Complex]

JGG,

That model isn't a programmable driver. The "EUD" series are the programmable ones. And the only one I can "readily" get is the EUD-600S280DT (not sure if DTA or DTL yet). It's a constant current driver.

Output Current: 2240 - 2800mA (programmable via pc).
Output Voltage: 108 - 268V

So that output voltage range is set right, even if I program/change the current setting the output voltage will remain within those V specs.

If QB 288 V2's are about 49.86v(?), then I can run 4-5 QB 288's on one of these right?
(I think I mentioned earlier that I know of a guy using one of these with 6 QB's but he's runnin series parallel I think).

I don't see any reason to not use this over an HLG-240h CC or CV driver... anyone?
The only thing I can think of is that running 4 QB 288 V2's on a 600 would be 150w each... But I'm definitely not interpreting that Flux Characteristic chart at HLG correctly?
Does it not indicate that the max wattage at the board is 139.60W?

Durp Lol.

How's your build going Woolster?

[Woolster22]

So they're on their heat sinks and all wired up. Used em turned down a bit for vegging (one of my plants decided to damp off or some fucking nonsense after transplant, not sure what was up with that), threw a net in and trained the remaining 3 to more or less fill the void. Turned the driver up and things are running at 138w/board iirc.

Heat hasn't really been an issue. Just 2 small clip ons up top, cool air from the ac duct (when temps call for it for that zone) vented in up top, and exhaust sucking from bottom. Temps max out around 79-80 when ambient around the tent is at 74.

Their in 30gal smarties full of no till goodness. As close to set it and forget it as I'll be getting without significantly upgrading things. That pic was last night, right around 3 weeks since flip. I'll defo thoroughly once more and then leave the girls alone to do their thing.