New Luminus SST-20 (3535 size)

[EasyB]

@Redlyne22

Correct, I reflowed onto a 28mm maxtoch, as far as that being the reason for the higher output, I really cant say for certain. It could be the cooler conditions. Or the much shorter LED wires. Or a large DTP mcpcb, Your guess is as good or even better then mine.

I actually had a sliced SST-40 and later a dedomed SST-40 in the UT02 (wasted a dozen SST-40’s until I figured how to properly dedome them). In the dedomed form It did just shy of 300k, somthing like 297k at 1850+ lumens. When it was sliced it did much much worse, I cant remember exactly, but if I was to guess, mmmmm 200k-220k

BTW, any california peeps looking to dedome SST-40’s I got the magic potion. I say california because we have to use the watered down crap called (low vac products) that are generally cat piss compared to the rest of the USA.

And you are absolutly correct about the large corona resulting in that extra side material from a sliced dome. My eyes get easilly fatigued, so trimming that side dome material on such a tiny LED is just outside my range of craftsmanship. I just started dedomong the sst-20. And daym. It’s way different then dedoming a SST-40!

Could you test whether the original MCPCB was DTP? And sorry, I meant can you measure the throw of the SST20 in the UT02?

With slicing domes, the luminance is sensitive to how close you slice it to the die. Measurement of LED luminance as a function of dome thickness