I did not find my exact brand and count of LEDs in the list either. So I made a small test in vixen at 10,20,30..... to 100 percent about 3 seconds between each. I run the test at the default that the express comes with. It was not very good. I tried a few different led brand settings and run my test on them. I found the best and went with it. I was very happy the the results.
Ron