Electronics > Beginners

Match LED Brightness

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tooki:

--- Quote from: Kasper on November 07, 2019, 05:43:15 pm ---If you must continue, please give evidence instead of fallacies.

--- End quote ---
Wow man, what a joke.

I don’t even think you know what a fallacy means. Your reply only serves to confirm what I have been saying.  :palm:

I didn’t limit myself to what jlcpcb carries, nor to only blue and orange, because your original claim didn’t, either. You made a broad general statement that simply isn’t true, and not only have I and others disproven it, now you have done the same.  :palm:

I don’t need to provide part numbers and links for my statement to be true. I gave you the source (the Reichelt catalog), and if you wanted to, you could go find it. (It is online.) I certainly am not going to go out of my way for someone who is so utterly arrogant in their position that it’s clear that NOTHING will make you realize you’re spouting bullshit.

Kasper:

--- Quote from: Kasper on November 04, 2019, 01:16:41 am ---Edit to add: efficiency and viewing angle may be so different that these quick solutions do not help.
[...]
If they have similar current they should have somewhat similar brightness but you could go further...

Longer version:
Look up the amount of light output per current input and pick a current for each LED that will yield similar outputs.
[...]

--- End quote ---



--- Quote from: Zero999 on November 07, 2019, 07:45:10 pm ---Of course simply selecting the same forward current doesn't give equal brightness for two different colour LEDs, even if differences in beam angle are taken into account. Implying that it's a good rule of thumb, is just not true.
[...]

--- End quote ---

I gave a quick solution that probably would have been an improvement.  Not hard to improve on using the same resistors for different colors.  Using the words 'should' and 'somewhat' I explained it is not a great solution and went on to describe a better solution.  I even went back to clarify there may be cases where it doesn't help.  Even though it most likely would have helped with LEDs from where OP is sourcing (JLC) or even with LEDs from digikey as I have clearly shown.

Kasper:

--- Quote from: tooki on November 08, 2019, 01:56:43 am ---
--- Quote from: Kasper on November 07, 2019, 05:43:15 pm ---If you must continue, please give evidence instead of fallacies.

--- End quote ---
Wow man, what a joke.

I don’t even think you know what a fallacy means. Your reply only serves to confirm what I have been saying.  :palm:

I didn’t limit myself to what jlcpcb carries, nor to only blue and orange, because your original claim didn’t, either. You made a broad general statement that simply isn’t true, and not only have I and others disproven it, now you have done the same.  :palm:

I don’t need to provide part numbers and links for my statement to be true. I gave you the source (the Reichelt catalog), and if you wanted to, you could go find it. (It is online.) I certainly am not going to go out of my way for someone who is so utterly arrogant in their position that it’s clear that NOTHING will make you realize you’re spouting bullshit.

--- End quote ---

I politely request evidience instead of fallacies, I even said please but once again you reply with more fallacies and personal attacks 'utterly arrogant' and 'spouting bullshit' and a even little yelling 'NOTHING'.


--- Quote from: tooki on November 08, 2019, 01:56:43 am ---I certainly am not going to go out of my way for someone who is so utterly arrogant in their position that it’s clear that NOTHING will make you realize you’re spouting bullshit.

--- End quote ---

You won't go out of your way to share knowledge but you are going out of your way to spew fallacies and personal attacks.  I guess we know what you are here for.

Fallacies and attacks are clearly your top priority but if you are going to call someone wrong, you should expect them to ask why.



--- Quote from: tooki on November 08, 2019, 01:56:43 am ---blue and orange

--- End quote ---
blue and yellow.

tooki:
We’ve told you why you’re wrong. You already provided evidence of this yourself. But since you won’t accept your own evidence as evidence, it’s clearly utterly pointless to go to the much greater effort to dig up datasheets and stuff.

P.S. They’re not personal attacks, just simple statements of fact.

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