Fanleaf's Huge 42 COB Array Build Plus Other Builds

[fanleaf]

Well I'm driving the exact setup and I get 1.4a at start up and much higher after the system is hot. 1.67 I think....don't quote me) I'll show you later, day 2 of 12-12 and I don't wanna light them up when they're sleeping.

If it cant hit 1.75 amps as soon as you turn it on its the wrong combo.

 

[JimmyJames905]

If you want to run 4 chips per driver you need either of these options.

1. HLG-240H-C1400B. This will allow you to run them at roughly 50.6 Watts per chip. 201W @1400mA
2. HLG-320H-C1750B. This will run 4 chips at 1750Ma. This will run at 65 watts per chip. 260 Watts!
3. HLG-320H-C1400B. With this driver you run 6 chips not 4. 50.7 watts per chip X 6 chips = 305 watts

Gotta disagree. Got 4 SE's running on a HLG 185-1400. Meter says exactly 200w.
I don't have any 320s here.

 

[fanleaf]

I'm running 4 29's on a hlg240c1400b. I'm getting max 218 to 220 watts at wall. Haven't tried to calculate anything but figured driver is putting around 200 watts to chips and rest is to operate driver. All my drivers are pulling pretty much same at wall. I have some D.C. Meters I'm going to try to swap out the ac meters. Then use an AC meter in each branch circuit (I have 2 20a breakers feeding drivers), and a third 20a circuit feeding my accessories.

That's a good combo. The 1400 has 179V ready to be used. You are in specs as mentioned in my post a few ago when giving Nismo options.

 

[Buckshot317]

Vero needs to take a thread out of chips to get fv down to 36 like Cree did few years back( seen that on a growmou5 vid), be a lot easier matching drivers. I was aiming at 5 per hlg240, and come up just a little short on voltage.

 

[JimmyJames905]

The very simple answer is that this is absolutely the WRONG driver. This driver runs out of voltage at 143 volts. Vero 29SE at 1750mA HAS TO HAVE roughly 38 volts in order to run at 1750mA. 38V times 4= 152 volts. You simply have the wrong driver my friend.

That driver will only provide 143 divided by 4 =35.75 volts per chip. At 35.73V they run at roughly 1050mA. This proves my point because your voltage available from the driver is 35.75 X your 1050mA= 37.53 Watts per chip! 37.53 X 4 chips= 155W........Your sucking your driver dry bro. Wrong one.

Vero se at 1750 is 36.6v. Not 38.
Where are you getting this info?

Do you have some spec sheet I don't know about.
Mines sitting right in front of me at it says 37.6 at 2100 so how does it use 38 at 1750?

 

[fanleaf]

Gotta disagree. Got 4 SE's running on a HLG 185-1400. Meter says exactly 200w.
I don't have any 320s here.

Dude, what are you arguing with? I didn't say anything about a 185 lol

 

[fanleaf]

Vero se at 1750 is 36.6v. Not 38.
Where are you getting this info? Do you have some spec sheet I don't know about.
Mines sitting right in front of me at it says 37.6 at 2100 so how does it use 38 at 1750?

36.6 or 38 either way at that point it don't matter. He's out of specs. Wrong driver. The math and the manufacturer specs show it. So does every reading he is showing. That's exactly why Buckshot is getting 200W from the 1400 driver. Because it can provide the missing voltage Nismo needs.

 

[JimmyJames905]

Well I do like the 185 at 1400. I recommend it. 50w per. Run em at 35w each.

 

[JimmyJames905]

@Nismo
Are you always running your system "full throttle"?

 

[Buckshot317]

Seems like all 6 of my drivers have the same output voltage, all read the same 179v, according to fluke meter. Here's a pic of 1 driver maxed out,

 

[Buckshot317]

I gotta check my source voltage, when I installed my 100a sub panel I was getting 122v, according to display meter I'm at 119v. I have a Vd somewhere

 

[fanleaf]

I gotta check my source voltage, when I installed my 100a sub panel I was getting 122v, according to display meter I'm at 119v. I have a Vd somewhere

Whats the wire run length from the sub to where youre seeing 119v?

 

[Buckshot317]

10ft. My 400a service is approximately 60ft from sub panel. Then about 10 ft to my driver board. I just got back to my room. I'm going to check voltage at sub, see what's coming in. I should be good at that distance, I have #6 wire feeding panel

 

[Buckshot317]

There's no problem, just the digital display meters are little off. I have 122v at my timer strips

 

[JimmyJames905]

Fanleaf's Huge 42 Cree CXB3590 COB Array Build Plus Other Builds

Seems like all 6 of my drivers have the same output voltage, all read the same 179v, according to fluke meter. Here's a pic of 1 driver maxed out,

I get the exact reading on the 240-1750 at max. Not that I would run them that hard.

 

[Buckshot317]

now I'm reading normal. I'm hook my big fluke up for 72 hrs, and let it log, to see if they are any variances

 

[Buckshot317]

I'm not sure if its displays are little off, I really think it's the transformer that's feeding my service, neighbors have had some spikes and drops at their house

 

[JimmyJames905]

I'm not sure if its displays are little off, I really think it's the transformer that's feeding my service, neighbors have had some spikes and drops at their house

Well I know my transformer is good. It just blew up last week and hydro was out there putting up a new one at 4 am.
Lol

 

[fanleaf]

10ft. My 400a service is approximately 60ft from sub panel. Then about 10 ft to my driver board. I just got back to my room. I'm going to check voltage at sub, see what's coming in. I should be good at that distance, I have #6 wire feeding panel

Oh yeah, only 60ft with 6AWG wire you should be more than fine. You should see no more than a 1-2 volt drop even with a decent load on the sub.

 

[jimmyclone]

I run 4 vero29 se's on hlg240-1750's and see 220w all day long.. I have 4 of these strings, all the same.. Yes forward voltage is being limited a bit, but works just fine for me...