...All Things Vero...

Would you consider buying a VERO after reading through some of the posts?

  • Total voters
    357
coolbreez1

coolbreez1

Well-Known Member
Yes, both my six LED Vero 29 arrays are running with the LPF-90-42. Just wire the DC side of each LPF-90-42 to the easy mate connectors and plug into the LEDs, then wire the AC ends together into one or two power cords and plug into a timer which is plugged into a wall outlet. If you wire with two cords you don't need a ground, if you wire in one cord you need a ground.
 
JavaCo

JavaCo

Well-Known Member
REALSTYLES said:
Damn I have 6 HLG-185H-C700A's so I'll have to get different drivers to run Vero 29's but fuck it.
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Well you could use those drivers to run vero 29's. But it will be underdriving them quite a bit. You could run 7 maybe 8 vero 29's off that driver. So they would work just depends what you want to do. You wont get that pretty big efficiency jump the CXA 3070's get by running them soft but you will still get a jump in efficiency.
 
REALSTYLES

REALSTYLES

Well-Known Member
JavaCo said:
Well you could use those drivers to run vero 29's. But it will be underdriving them quite a bit. You could run 7 maybe 8 vero 29's off that driver. So they would work just depends what you want to do. You wont get that pretty big efficiency jump the CXA 3070's get by running them soft but you will still get a jump in efficiency.
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I figured 7 and thanx for your help. What wattage will they pull?
 
AquariusPanta

AquariusPanta

Well-Known Member
coolbreez1 said:
Yes, both my six LED Vero 29 arrays are running with the LPF-90-42. Just wire the DC side of each LPF-90-42 to the easy mate connectors and plug into the LEDs, then wire the AC ends together into one or two power cords and plug into a timer which is plugged into a wall outlet. If you wire with two cords you don't need a ground, if you wire in one cord you need a ground.
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That sounds kind of like what I do.
 
REALSTYLES

REALSTYLES

Well-Known Member
JavaCo said:
Depends on the chips forward voltage. Data sheet has them @ 36.8 Vf @ 700mA so 7 x 36.8 = 257 volts x .700 amps = 180 watts divided 7 = 25.7 watts a COB. So about 25 watts a Vero. 180 watts a driver.
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Wow that's what I get running 4 CXA3590 3000k per driver and 216.5 watts per 4 on CXA3590 5000k why?
 
JavaCo

JavaCo

Well-Known Member
Not sure what your asking? Dont see how your getting 216 watts out of a 200 watt driver.You using a Watt o meter? I was also just going off the data sheet so it was a rough estimate. You asking why, because of the difference between the 3000k and 5000K . To get a true wattage you would have to measure the Forward voltage and amperage of the chips while running on the output side of the driver. At least that's what I do. I don't factor in driver efficiency.
 
AquariusPanta

AquariusPanta

Well-Known Member
JavaCo said:
To get a true wattage you would have to measure the Forward voltage and amperage of the chips while running on the output side of the driver. At least that's what I do. I don't factor in driver efficiency.
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Yeah that's how I do it too. I skipped measuring the potentials and currents of my latest COB rig and just did the tallied out the math which included the projected driver efficiencies. Using the kill-a-meter, the rig is pulling ~175W while the COBs are emitting ~145W (~83% driver efficiency overall).

I could get it (driver efficiency) a little higher if I was pushing the loads of the newer drivers but will have to wait until I upgrade the Vero 18's to 29's (something I planned for ahead of time).
 
Abiqua

Abiqua

Well-Known Member
Messing around with a Vero 29...small little Glacial tech cooler...the slug is 180 grams and just for reference the Alpine 11+ cooler slug is 366 grams [just over 3/4 of a lb. .80]

Kinda interesting, working on getting some older Thermaltake copper coolers with a 460 gram all copper slug....they might be good enough for a single V29, ran @2amps or more......

P1130414.JPG P1130413.JPG P1130411.JPG
 
coolbreez1

coolbreez1

Well-Known Member
The heat dissipation with the Alpine 11 is much higher then required by my calculation you could get away with maybe 60 watts of heat dissipation, the alpine 11 is 100 watts. I had chosen the alpine 11 ones because of cost and simplicity, but I think they are a bit over kill, which with heat dissipation is always good.
 
Abiqua

Abiqua

Well-Known Member
coolbreez1 said:
The heat dissipation with the Alpine 11 is much higher then required by my calculation you could get away with maybe 60 watts of heat dissipation, the alpine 11 is 100 watts. I had chosen the alpine 11 ones because of cost and simplicity, but I think they are a bit over kill, which with heat dissipation is always good.
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I actually won't be running the V29 on the little sinks, but regardless I still would only be running 600ma, so they clock in @ just under 20 watts apiece.

I think your wattage assumptions are fair....6ow may even be too generous for this littler cooler, but is does have serration, which is supposed to help to some nth degree :peace:
 
Abiqua

Abiqua

Well-Known Member
@AquariusPanta

Just like to add....when I 1st ran my Vero 10's. I melted a remote temperature probe right on the LES, piece of plastic melted on it, in the shape of cigarette burn, lol....

Anyhoo, cleaned it up with ISA and a Qtip and been running 6 weeks since without a hitch. They are tough in the surface category.....
 
Abiqua

Abiqua

Well-Known Member
AquariusPanta said:
@Abiqua

I've been wreckless before when screwing down the COBs onto the HS. I actually made direct contact with the LES with a flat head tip and it didn't even make a dent (and I had applied pressure with impact).

These Veros are hard to ruin in my experience.
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Yeah, thats a little crazy, survives a stabbing even....I bet you could remove parts of the LES in a way that didn't f'up the underneath contacts for actual diode, it probably would still work and shine blu-ish where the missing LES was previously located, I betcha, just a hunch....

@AquariusPanta PS, NOT that you would want to, just in a worse case kind of scenarios, seen it on other diodes this way.....after an "accident" :peace:
 
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alesh

alesh

Well-Known Member
JavaCo said:
They say not to run them in Parallel they actually recommend Series in the data sheets. Not running LED in series is pretty old info it was useful when production techniques produced led's that had a wide Vf ranges out of the same production batch. It is not really relevant with quality COB LED Arrays these days .
But if i was going to run vero 29's i would go with the LPF-90-42 to run them at test specs 2.1 amps. Bad thing about the hlg series is 1400mA is the highest you can go and you can only power two Vero 29's off one of those.
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I think that this info is now more relevant than ever. From my experience, Vero COBs (even 4 CXA3070s I got to measure) have pretty wide Vf range. Good thing is that they can handle really a lot of current.
 
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