Does this mean at around 350mA it will produce 100% of 175 lumens/Watt?
at 180mA it produces 50% more Lumens/Watt 87.5 + 175= 262.5 L/W.
at 520mA it would be 50% less 87.5 L/W
In the build guide it stated 171L/W. 24 strips 500mA each.
Confused about Relative lumens vs current
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ATPinMotion
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No, it means at 350ma it will produce 100% of the ~1200 lumens the strip is rated for (depending on CCT).
See page 5
Efficiency is highly dependant on temperature,
The graph on page 10 will get you very close to real efficiency numbers, but doing so theoretically requires the temperature of the strip.
See page 5
Efficiency is highly dependant on temperature,
The graph on page 10 will get you very close to real efficiency numbers, but doing so theoretically requires the temperature of the strip.
Run 'em soft
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Steveb123321
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Page 10 on this data sheet is titled "mechanical dimensions". Are you talking about "Performance Curves" ?ATPinMotion wrote: ↑Sat Apr 20, 2019 11:36 pmNo, it means at 350ma it will produce 100% of the ~1200 lumens the strip is rated for (depending on CCT).
See page 5
Efficiency is highly dependant on temperature,
The graph on page 10 will get you very close to real efficiency numbers, but doing so theoretically requires the temperature of the strip.
I am driving the L0280Z-35E1000-C-B3 at 575mA when pot is maxed.
So if it was at 25c it would be ~160% of the 1200 lumen each strip?
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ATPinMotion
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Yup, you guys are right on.
At 585ma I would predict a temp of around 50°C unless you are liquid cooling the strips.
Due to 5% thermal loss, it would be reasonable to expect 1800lm output in a typical setup.
Sorry for the confusion, I'm referencing the DS131 datasheet
At 585ma I would predict a temp of around 50°C unless you are liquid cooling the strips.
Due to 5% thermal loss, it would be reasonable to expect 1800lm output in a typical setup.
Last edited by ATPinMotion on Sun Apr 21, 2019 5:30 pm, edited 2 times in total.
Run 'em soft
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Steveb123321
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Steveb123321
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ATP you just beat me to my next question, about the loss due to heat !ATPinMotion wrote: ↑Sun Apr 21, 2019 5:06 pmYup, you guys are right on.
At 585ma I would predict a temp of around 50°C unless you are liquid cooling the strips.
Due to 5% thermal loss, it would be reasonable to expect 1800lm output in a typical setup.
Screenshot_2019-04-21-10-59-39.png
Sorry for the confusion, I'm referencing the DS1310 datasheet
1800 x 16(strips)= ~29000 lm
Should be a good replacment for a 250HPS which draws 300W.
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faizanmazhar00
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Yup, you guys are right on.Steveb123321 wrote: ↑Sat Apr 20, 2019 11:26 pmDoes this mean at around 350mA it will produce 100% of 175 lumens/Watt?
at 180mA it produces 50% more Lumens/Watt 87.5 + 175= 262.5 L/W.
at 520mA it would be 50% less 87.5 L/W
In the build guide it stated 171L/W. 24 strips 500mA each.
At 585ma I would predict a temp of around 50°C unless you are liquid cooling the strips.
Due to 5% thermal loss, it would be reasonable to expect 1800lm output in a typical setup.