Complete list of Texas_Ace LED tests with user adjustable comparison chart

TA, it would be useful to see a power / output chart as well. Right now it’s practically impossible to compare XHP with 3V LEDs…
Would adding that be possible?

Shouldn’t be an issue, I’ll take a crack at it

If you click the direct links to my tests in my Sig it lists the power and outputs for all the LED’s.

Got to compare it the old fashioned way but it works. If Gcart can make up a graph for comparing by wattage and/or efficiency that would be really cool as well.

Thanks to you both, nice to have graphs to be able to predict vf and lumen’s before you even build a light.
I have used the data a lot, very helpful. The comparable graphs make it even better. :wink:

My favorite isn’t in the list. You never tested a MT-G2?

Nope, never even seen an MT-G2 myself.

Thanks. Having all your LED tests in one spot is very helpful.

Would be cool to add some tests from other users (assuming they have similar setups and agree to it)

Especially would like to see SST-40 and Luxeon V.

The results from different users are not directly comparable in most cases.

None of us have professional spheres but standard calibrated spheres. Since all of our standards are different our readings also vary some.

That said for the most part we are reasonably close all things considered as long as you don’t overlay the graphs.

Plus even small things like the reflow of the LED can have large effects on the results when pushing things to the limit.

Doing separate charts for other testers would be cool but overlaying them could lead to more confusion and issues then it helps when they vary by 10-20% in some cases on paper but in the real world are the same LED.

I agree the specifics of testing are important but honestly I bet you could take one of your Nichia and Cree tests (219 & XPG3 or something) and the same LEDs from djozz and come up with a Texas to Amsterdam factor.

Yeah, me and Djozz have talked about this in the past. The problem is that the difference in our results varies LED to LED making it hard to give a good number across tests.

Some of this is the variation in binning from Cree, they have a 14% tolerance for each bin, and some are from minor variances in our own tests, like reflow, temps ect and the rest is the setup.

May we get the raw data behind the charts?

If you got to the individual threads for the tests you can see the raw data. This comparison is simply to compare different LED’s.

Yeah, but writing it down from the pictures is quite a laborious task… I’m sure you have the data available in editable form or else the charts in this thread wouldn’t exist.
I tried downloading the chart data from tableau, but got some weird format that requires proprietary Windows/Mac software to read. My machines run FreeBSD or Linux. Tableau has a web editor, but before I started it I saw a remark “You will need Tableau Desktop eventually”, so I gave up.
I would really appreciate help here…

That is part of why I have not released the data file, it is excel 2013 based and all the charts seem to make it unstable. Excel crashes on me regularly when I have that file open.

I will look into converting it to another format and releasing it though.

I would be happy with any format. Excel 2013 is as fine as anything. I can do the conversion for you and for others.

OK, I ran a repair on the excel file and it seems to be working better now. I uploaded it in the OP.

Thanks!

Thank you for sharing this!

Could you make a graph page comparing lumens to watts and then maybe add the Vf range next to each particular LED?