Thanks for the testing 
Thanks for the test. With the low Vf and high luminance dedomed this LED is the optimal one (IMO) for single cell triple emitter applications. The emitters are driven very well without the risk of blowing the bond wires. With an aspire 4300mAh 26650 my convoy L2 triple SST40 pulls 19A.
I built a triple that pulls just over 24A with these (multiple cells in parallel though). It’s a fun light but I’m not very fond of the tint.
At that brightness you could could use a filter and it would still be very bright.
Orsm testing. Thanks. :+1:
Thanks Koef3
Thanks.
Thanks for the test 
Nice review!
I achieved 160 kcd in an Emisar D1S with dedomed SST40. Nothing else changed just the led.
Same led in an Eagle eye X6 with fet driver: 88,5 kcd
Same led and fet driver in Convoy C8 AR coated lens: 136,3 kcd with dome: 70,5 kcd
Convoy L2 Fet driver with dome on: 172 kcd
Can anyone suggest a good 17mm to 22mm 1s-2s buck drivers to run this LED up to 7-8A, or so?
hey ZozzV6
how did you dedomed SST40?
I’m curious too, I put one with dome in my D1 so I want to try in my D1S too
It was an early led that somebbody told here on blf it was easier to dedome. I putted it in regular 95 octane petrol floating on wires upside down. And the dome falallen off. It leleft a little on the phosphor but I removed it with an Xacto knife under microscope.
1 more question 
how long did u leave it in 95 octane petrol ?
Important notice:
I updated the luminance values for all LEDs shown in test chart, including SST-40-W also in dedomed state.
To ensure more realistic values for 'real-life' conditions (flashlight use / secondary optics) I established a new testing method to determine the luminance with a SMO reflector, but same heatsink / test setup. All upcoming and already existing tests will use this method!
Updating of my other tests will be done in the next hours / days.
thanx!
Raw data
Luminus SST-40-W (domed)
Amps lm Vf
0,20 116 2,67
0,40 213 2,72
0,60 310 2,76
0,80 401 2,80
1,00 489 2,83
1,20 578 2,87
1,40 660 2,90
1,60 739 2,93
1,80 812 2,95
2,00 895 2,98
2,20 966 3,01
2,40 1037 3,03
2,60 1110 3,06
2,80 1174 3,08
3,00 1240 3,10
3,20 1312 3,13
3,40 1373 3,15
3,60 1434 3,17
3,80 1494 3,19
4,00 1559 3,21
4,20 1616 3,23
4,40 1678 3,25
4,60 1736 3,27
4,80 1785 3,29
5,00 1843 3,31
5,20 1901 3,33
5,40 1942 3,35
5,60 2000 3,37
5,80 2041 3,39
6,00 2091 3,41
6,20 2140 3,43
6,40 2182 3,45
6,60 2223 3,47
6,80 2264 3,49
7,00 2314 3,51
7,20 2347 3,54
7,40 2388 3,56
7,60 2421 3,58
7,80 2463 3,61
8,00 2504 3,63
8,20 2529 3,66
8,40 2562 3,69
Luminus SST-40-W (dedomed)
Amps lm Vf
0,20 95 2,68
0,40 179 2,74
0,60 261 2,79
0,80 327 2,83
1,00 410 2,87
1,20 476 2,90
1,40 546 2,94
1,60 612 2,97
1,80 680 3,00
2,00 744 3,03
2,20 800 3,06
2,40 860 3,08
2,60 918 3,11
2,80 979 3,14
3,00 1036 3,16
3,20 1085 3,18
3,40 1140 3,21
3,60 1191 3,23
3,80 1244 3,26
4,00 1290 3,28
4,20 1341 3,30
4,40 1392 3,32
4,60 1436 3,34
4,80 1482 3,36
5,00 1526 3,38
5,20 1570 3,41
5,40 1609 3,43
5,60 1650 3,45
5,80 1694 3,47
6,00 1736 3,49
6,20 1777 3,51
6,40 1810 3,53
6,60 1843 3,55
6,80 1884 3,57
7,00 1917 3,59
7,20 1950 3,61
7,40 1983 3,64
7,60 2008 3,66
7,80 2041 3,69
8,00 2066 3,71
8,20 2091 3,75
8,40 2116 3,78
If you create diagrams / comparisons with this data, I would ask you to publish these charts in this topic and also to specify the source of the data used. 
Thanks :+1:
Thanks!
Very interesting results at changing Tj. The setup used here is the same as earlier light flux vs. Tj tests.
At low Tj (10 °C and below) the light flux decreases surprisingly instead of rising, like at most other LEDs at these temperatures. I've been able to reproduce this behavior several times. Also the Vf rises significantly higher at low temperatures than stated in the official datasheet.
From this point of view I cannot recommend this LED for applications, which are used at low temperatures, like outdoor lighting or even flashlight. The lower the temperature is so lower the light flux seems. Unfortunately I cannot go lower than -5 °C Tj...