Is this a Vero 29 killer?

Evil-Mobo said:
And all I am saying is that I never said less watts was one of them :)
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ha ha..............this was all avoidable, my fault

JorgeGonzales said:
Perhaps you should write a stern letter to Mean Well correcting them.
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with resistance/voltage drop/copper loss we're talking about a miniscule diff in favor of 240v ...........I should have worded it better or not even say anything to begin with!:P

No, I'm not writing any letters, lol.......3% is possible, just have my doubts

I would like to see actual, real time kilowatt metering done on a MW driver 110/120 vs 220/240v at 90% load.......seeing Dawg's recent temp casing tests , the driver manufacturer you chose is way more important than volts run
 
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PSUAGRO. said:
ha ha..............this was all avoidable, my fault



with resistance/voltage drop/copper loss where talking about a miniscule diff in favor of 240v ...........I should have worded it better or not even said anything to begin with!:P

No, I'm not writing any letters, lol.......3% is possible, just have my doubts

I would like to see actual, real time kilowatt metering done on a MW driver 110/120 vs 220/240v at 90% load.......seeing Dawg's recent temp casing tests , the driver manufacturer you chose is way more important than volts run
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I'll do it when i get time. That behavior is not at all uncommon, power supplies are almost always more efficient at higher input voltage. the components are designed to operate in a given input range.without tearing one apart it is likely that 120V has at least one additional step-up in there to get to the proper input voltage of the main circuit - every step is lossy.
 
PSUAGRO. said:
ha ha..............this was all avoidable, my fault



with resistance/voltage drop/copper loss we're talking about a miniscule diff in favor of 240v ...........I should have worded it better or not even saying anything to begin with!:P

No, I'm not writing any letters, lol.......3% is possible, just have my doubts

I would like to see actual, real time kilowatt metering done on a MW driver 110/120 vs 220/240v at 90% load.......seeing Dawg's recent temp casing tests , the driver manufacturer you chose is way more important than volts run
Click to expand...
i been looking for a killawatt that does 240v,find me one and i will buy it (:
 
it is interesting to look back at all the early 'on-paper' speculation in this thread that was later disproven. stuff like

JorgeGonzales said:
The 1818 doesn't scale down nearly as well as the Crees. And Only a couple watt difference between the 1212 and 1818 running around 36W. Both should handily beat the pants off this generation Vero.
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when in reality at just about all currents its 1212<vero V6<CXB<1818=vero V7

and that pecking order is almost entirely a straight up order of # of dies per chip
 
@CobKits The DS93 gen 7 data sheet looks really good on paper! I really like how they've listed each cobs efficacy at a range of given power levels, respectively. Some cobs are exceeding 200 lm/W
But I don't understand how to power them in the real world? It looks like there's low voltage, medium, and high voltage cobs, and the voltage can be varied at a constant current? Is that right?
What kind of driver is suitable?
I would like to run eight of the low voltage type cobs at ~36V on a Meanwell HLG-320H-1050A. Would that work?
 
@CobKits also wondering if anyone has any idea of a good driver to run the cobs at 66V/855mA?
That looks like the sweet spot for power and efficacy with the gen 7's
 
So would 4 clu048-1818c4 be optimal on an hlg-240h-c1400a? Have 8 of the hlg's and 24 fcopto luna100's that am planning to get different power supplies to run so am looking for better possible alternative to run on the 180v/240w/1.4A. Any ideas? Threw in the luna100 data sheet because it is similiar to the citizen.
 

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