Does anyone still use SST20?

[flightless22]

Nichia 519A

After several weeks of absence I was in my 2m2 hobby universe once again to test a few emitters for rngwn, and while doing that I did an output test of the 519A from Simon too. So here, without proper test thread, are my results. Mind that djozz-lumens are a bit higher than maukka-lumens, on average around 7%. [image] *some irregularities in the measurements around maximum output, I think the current knobs of my power supply are getting dirty over time and the current spontaneously fluctuates …

Nichia 519A

Here’s a graph comparing R90 3535 LEDs [image] Maukka’s tests for LH351D and SST-20 Djozz’s test for 519A with 0.93 factor Texas Ace’s tests for 219C and 219B with 0.925 factor (calculated from Maukka’s and TA’s E21A tests)