HLG 240h 24a questions.
- Thread starter mastrmasn
- Start date
Chip Green
Well-Known Member
On paper, they're rated for 250W...
ApfelStrudel
Well-Known Member
It says 25.6V and 10A max
mastrmasn
Well-Known Member
On paper.... care to elaborate? I work in power supplies (military applications) what we rate on paper doesn’t mean squat compared to what they can actually run lol. I’m iffy about having our techs take a look at this driver and give me an answer without asking to many questions.
Quick edit it’s the 20a not 24a.
JavaCo
Well-Known Member
You got to watch out in here pretty much everyone measures the input side and doesn't factor in the efficiency, so they usually say they put out more then they are rated for when meanwell clearly rates them on the output side. Wattometers work on the AC input side and that's what pretty much every one uses. Personal experience I really couldn't say I run all my stuff in series so I own all HLG c series drivers. I seriously doubt it would put out much more then 240 to 250 watts.
Chip Green
Well-Known Member
^^^
That.
I have no concern for what they "put out" ….. Watts are a unit of consumption.
That.
I have no concern for what they "put out" ….. Watts are a unit of consumption.
ChiefRunningPhist
Well-Known Member
"On paper" is talking about multiplying the max voltage range with the max rated amperage range.
Amps × volts = watts
In the 20A example, you'd have 21.4v × 12A for a total DC side wattage of 256.8w.
In the 24A example, you'd have 25.6v × 10A for a total DC side wattage of 256.0w.
These are "paper" or theoretical limits. Most MW drivers have a little extra power than what they are rated for. In this instance (and understanding the MW under rating tendency), 256w output for a 240w rated MW driver seems right on par.
Amps × volts = watts
In the 20A example, you'd have 21.4v × 12A for a total DC side wattage of 256.8w.
In the 24A example, you'd have 25.6v × 10A for a total DC side wattage of 256.0w.
These are "paper" or theoretical limits. Most MW drivers have a little extra power than what they are rated for. In this instance (and understanding the MW under rating tendency), 256w output for a 240w rated MW driver seems right on par.
diyled
Well-Known Member
Datasheets are useless with Meanwell drivers. Always go off the test report.
https://www.meanwell-web.com/content/files/pdfs/productPdfs/MW/HLG-240H/HLG-240H-24-rpt.pdf
(10.845a x 24v) X1.07 = 278w
Most HLG-240H A types can push over 300w
https://www.meanwell-web.com/content/files/pdfs/productPdfs/MW/HLG-240H/HLG-240H-24-rpt.pdf
(10.845a x 24v) X1.07 = 278w
Most HLG-240H A types can push over 300w
ChiefRunningPhist
Well-Known Member
Curious, where are you getting the 1.07 correction factor from?
According to the test result its almost 284w DC output. 26.19v × 10.845A = 284w. That's quite a bit more than the "paper" or calculated maximum.
Thanks @diyled for providing that data. I didn't know they had test reports like this.
ChiefRunningPhist
Well-Known Member
Wow, I wonder what a 320 does. That's crazy
Moflow
Well-Known Member
About 370 watts
diyled
Well-Known Member
That's the drivers efficiency loss which is an added wattage of 7%.
Chip Green
Well-Known Member
WUH, I thought my 240H-C1050B was a badass at 277.....
ChiefRunningPhist
Well-Known Member
I know it's not much different, but dividing by .93 and multiplying by 1.07 will give different figures.
Multiplying the .93 figure by 1.07 is essentially adding 7% of the 93% back onto the 93%. It will be off because 7% of 93% is less than 7% of 100%.
325w (AC side) × .93
=
302.25w (DC side)
Do you use a multimeter to adjust your output? Do you know what your V & I are? That unit is only rated for 238v lol I'm curious where its making up the added power from. (@Moflow too) Extra I or V or both?
I wonder if I could shop for 240s instead of 320s if trying to power 300w of LED, seems do-able with those power outputs.
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KonopCh
Well-Known Member
@ChiefRunningPhist I go with the total wall output. I think I have 234-236V by spreadsheets, so closely to maxximum. I don't remember anymore, I made a light couple of months ago. But if you wish, google and calculate it. I have 10x 4ft Q's + 6x 660nm on each driver. Hope that helps.
ChiefRunningPhist
Well-Known Member
Idk what a 4ft Q is, and I believe you, I was just curious what they'd go to.
I'd have to know what chip is used in the LED and how the LED is wired (Series: Parallel) as well as how you have them wired to the driver.
I use 320hs but have to dial them back for (2) QB304+'s (8P:38S, lm561c/epistar660nm). So I have to use a multimeter to set the drivers because I can't just crank them full blast. I was just curious if you had to do the same seeing as you likewise utilize a CC MW driver. I'm currently using all my 320h drivers otherwise I'd test them to see. Don't feel pressured to test I was just curious.
ChiefRunningPhist
Well-Known Member
Hey does anybody know by chance how much higher you can turn the current up on a 120h c1050a? What the max is?Current and power?
I believe mine is 168w cranked according to the kill-a-watt