I mentioned in an earlier post about a nifty little program call QLED being distributed by Future Lighting Solutions that does 3D thermal modeling of high power LEDs and Heat sinks, both passively and actively cooled. It sounded neat and based on the demos in the video I thought I'd check it out.

As usual you have to register to download and request a license file via email. So far so good. I got the license in about a day and was able to play with it for awhile and I was impressed generally by the features and relatively intuitive interface. I say relatively only because it didn't pass the "can I do something useful without resorting to RTFM?" test. My first pass through the solution wouldn't converge and it locked up. After going through the tutorials I found the error of my ways and got it to work.

Now for the bad news........... I noticed while running the program that the license was only good for 6 days. Something never mentioned in any of the links to the program, registration page or information when requesting a license. If it sounds too good to be true...... well you know the rest.
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