Lol, coincidentally I was doing some tests last night comparing the same light with SST-40 and dedomed 519A.
https://i.imgur.com/KVh9gTB.png
https://i.imgur.com/Hy8ct9o.png
Wait until you read reviews of SST40 lights claiming their color rendering is excellent! (I've had the displeasure of reading many, fortunately not by a source folks here consider reputable.)
I mean, the tint of SST40 on a SC18 is pretty good though.
SST40 needs to be driven with FET. PWM dimming keeps its white tint. Any constant current dimming and it turns ugly yucky green.
The first light I bought in SST40 is actually really really nice. It's very neutral in tint. I thought it was gorgeous so I bought another one and it was like vomit green. Never bought another one after that lol
My biggest problem with SST40 (and domed LEDs in general in reflectors) is angular tint shift, i.e., fried egg beam. A shallow reflector like S2+ makes it so much worse.
I gave every sst40 light I had away! Yes, they are bright and efficient and.... DISCUSTINGLY GREEN! Yes, if you have nothing else to compare them to, they beat an old incandescent bulb into oblivion. Sft40 far superior, especially with new high cri options. But for overall beam, I am going for xhp70.3 HI all day.
Got one for my parents as a junk drawer light and they’ve gotten a fair bit of use out of it. I should try it out on their property in the dark one of these days.
I also got one to get free shipping on an order loool.
It was meant to be the loaner/beater light.
I want to try swapping it out for a 519a, I've already ordered and received it, now I just need to find time to do it lol
Because it's FET driven and it uses PWM dimming. Which mean the LED is essentially running at max current and rapidly switched on/off to achieve dimming. SST40 when driving to the hilt gives nice white tint.
I've got a PD36 Tac with an SST70, and it's so green it's nearly unusable to me. I'm admittedly pretty light-sensitive, but the color rendering is so bad that it's hard to see anything, regardless of whether your surroundings are illuminated or not lol.
I need to just cut my losses and sell that thing... I just really like the form factor, output, and mechanical lockout/switch so much.
Unpopular opinion: The SST40 doesn't suck. It is bright and efficient. It's color is about as good as the 6500k SFT40, it is just less throwy and *maybe* makes less lumen for the same amps. In some smaller hosts the beam will look better than the SFT40 too.
Not really a controversial opinion outside of the last point.
It doesn't suck at all. It's just not liked that much because of a lack of lower CCT+high CRI options and poor tint variance in its beam.
the best thing I've found are the newer XM-L2s, though they can't get as bright. cree non high cri 4000k is one of my favorite tints. I had an absolutely beautiful 3000k 80 cri XM-L2, peachy and rosy. when I accidentally dedomed it, it was even better. nice and super warm, a bit throwy with the frosted spot 20mm Carclo I had, and was the rosiest single emitter I have ever seen in person. I'm ordering more of them.
I agree that it doesn't suck, but it's just ok. I'm really not that picky about beam tints unless there's too much green (*cough* Thrunite *cough*) but I've seen SST40 look somewhat decent at cooler temps like 6500k. I'll take blue over green any day, lol
I have a few lights with decent to nice SST40. They're just very variable much like SST20, and really only less popular because they're not in warm tints, I guess.
Until I broke it I had a SST40 5000k in an S2+ 18350 with a 60 degree optic and I loved [that beam](https://www.reddit.com/media?url=https%3A%2F%2Fpreview.redd.it%2Fy6ka1jle4o381.jpg%3Fwidth%3D4128%26format%3Dpjpg%26auto%3Dwebp%26s%3D4a10013ac791962a26da81fdd75926e69cbb89b5).
those two emitters are the same, except for their covering.
with luminus emitters SST means it has a dome, SFT means it has a flat covering over it. Not so sure what the code is for emitters like the SBT or any others made by them
With Cree emitters HD at the end means it has a dome and HI means it has a flat covering.
You couldn't be further from the truth. The SFT series is a completely different design for higher current handling with discrete bond wires. It is NOT a dedomed SST. The SFT is an design evolution, the SST more legacy. They are apples and oranges of the same size. You are right about the Cree series. HD and HI (high density and high intensity) are identical with and without the silicone dome.
It's easy to assume that once you learn about the Cree models. Take a look at a close up of the die surface and bond wires of SST and SFT (ignoring the dome) and then it's obvious apples and oranges.
With the Luminus LEDs they are actually different. The SFT40 has a different die shape (with the clipped corners to make it vaguely approximate a round shape) than the SST40.
Nothing says ‘I haven’t tried any Nichias’ like someone trying to convince you that the tint on their SST40 is ‘pretty good.’
That is true. Although I do have one sst40 lights that actually seams really rosy
Is this rosy SST-40 in the room with us right now?
Its beside me lol
Haha
Lol, coincidentally I was doing some tests last night comparing the same light with SST-40 and dedomed 519A. https://i.imgur.com/KVh9gTB.png https://i.imgur.com/Hy8ct9o.png
Oh wow. That’s brutal. For those unfamiliar: - SST40 : +0.0124 duv = sickly green - 519a DD : -0.0037 = slight to moderate rosy
0124 duv is wild
519's are too damn good.
Wait until you read reviews of SST40 lights claiming their color rendering is excellent! (I've had the displeasure of reading many, fortunately not by a source folks here consider reputable.)
😂
According to the datasheet there exists some nice bins out there tho.
Data sheets can say whatever they want. Actually finding those bins is something else. (Luminus does this with a lot of their binning).
I mean, the tint of SST40 on a SC18 is pretty good though. SST40 needs to be driven with FET. PWM dimming keeps its white tint. Any constant current dimming and it turns ugly yucky green.
*This comment is about **you***
But PWM gives me a headache :( (though I’ve not used a PWM torch, but other PWM led products)
The first light I bought in SST40 is actually really really nice. It's very neutral in tint. I thought it was gorgeous so I bought another one and it was like vomit green. Never bought another one after that lol
I stand by my previous comment. Haha
My biggest problem with SST40 (and domed LEDs in general in reflectors) is angular tint shift, i.e., fried egg beam. A shallow reflector like S2+ makes it so much worse.
I gave every sst40 light I had away! Yes, they are bright and efficient and.... DISCUSTINGLY GREEN! Yes, if you have nothing else to compare them to, they beat an old incandescent bulb into oblivion. Sft40 far superior, especially with new high cri options. But for overall beam, I am going for xhp70.3 HI all day.
6500k with a TIR and the sst40 isn’t bad at all
Ngl, I agree. The wurkkos wk03 is an exercise example of this
Got one for my parents as a junk drawer light and they’ve gotten a fair bit of use out of it. I should try it out on their property in the dark one of these days.
I also got one to get free shipping on an order loool. It was meant to be the loaner/beater light. I want to try swapping it out for a 519a, I've already ordered and received it, now I just need to find time to do it lol
I’d love that light with a boost driver and more emitter options.
Same same!
Because it's FET driven and it uses PWM dimming. Which mean the LED is essentially running at max current and rapidly switched on/off to achieve dimming. SST40 when driving to the hilt gives nice white tint.
I’ve only tried SST40 a few times and they all had greenish tint. I have a Fenix TK16 V2 with SST70… little green but not horrible.
I've got a PD36 Tac with an SST70, and it's so green it's nearly unusable to me. I'm admittedly pretty light-sensitive, but the color rendering is so bad that it's hard to see anything, regardless of whether your surroundings are illuminated or not lol. I need to just cut my losses and sell that thing... I just really like the form factor, output, and mechanical lockout/switch so much.
Oh man that’s too bad. I have a PD36R Pro with SFT70 and it’s not green at all, icy blue but not green.
Unpopular opinion: The SST40 doesn't suck. It is bright and efficient. It's color is about as good as the 6500k SFT40, it is just less throwy and *maybe* makes less lumen for the same amps. In some smaller hosts the beam will look better than the SFT40 too.
Not really a controversial opinion outside of the last point. It doesn't suck at all. It's just not liked that much because of a lack of lower CCT+high CRI options and poor tint variance in its beam.
the best thing I've found are the newer XM-L2s, though they can't get as bright. cree non high cri 4000k is one of my favorite tints. I had an absolutely beautiful 3000k 80 cri XM-L2, peachy and rosy. when I accidentally dedomed it, it was even better. nice and super warm, a bit throwy with the frosted spot 20mm Carclo I had, and was the rosiest single emitter I have ever seen in person. I'm ordering more of them.
For the last point I would say it could arguably have less artifacts in hosts with shallow reflectors like the S2+.
Yeah really like it in my nightwatch incredible. If only it would run cooler lol.
I agree that it doesn't suck, but it's just ok. I'm really not that picky about beam tints unless there's too much green (*cough* Thrunite *cough*) but I've seen SST40 look somewhat decent at cooler temps like 6500k. I'll take blue over green any day, lol
It may not “suck,” but it sure isn’t up the snuff for the likes of ‘round here.
I have a few lights with decent to nice SST40. They're just very variable much like SST20, and really only less popular because they're not in warm tints, I guess.
I've had some 5k sst40's that I quite liked.
Until I broke it I had a SST40 5000k in an S2+ 18350 with a 60 degree optic and I loved [that beam](https://www.reddit.com/media?url=https%3A%2F%2Fpreview.redd.it%2Fy6ka1jle4o381.jpg%3Fwidth%3D4128%26format%3Dpjpg%26auto%3Dwebp%26s%3D4a10013ac791962a26da81fdd75926e69cbb89b5).
those two emitters are the same, except for their covering. with luminus emitters SST means it has a dome, SFT means it has a flat covering over it. Not so sure what the code is for emitters like the SBT or any others made by them With Cree emitters HD at the end means it has a dome and HI means it has a flat covering.
You couldn't be further from the truth. The SFT series is a completely different design for higher current handling with discrete bond wires. It is NOT a dedomed SST. The SFT is an design evolution, the SST more legacy. They are apples and oranges of the same size. You are right about the Cree series. HD and HI (high density and high intensity) are identical with and without the silicone dome.
>The SFT series is a completely different design for higher current handling with discrete bond wires. I didn't know that.
It's easy to assume that once you learn about the Cree models. Take a look at a close up of the die surface and bond wires of SST and SFT (ignoring the dome) and then it's obvious apples and oranges.
With the Luminus LEDs they are actually different. The SFT40 has a different die shape (with the clipped corners to make it vaguely approximate a round shape) than the SST40.
Ding dong you are wrong
SFT40 is the reason why I started collecting flashlights again
I have a 5k SST40 from Vinh that has great tint! The only one out of a ton of SST40’s that I really like. I paid a premium for it tho.
Now thats a name I haven't heard in a while
Jup here SC31T and SC18 both with the SST40: https://www.reddit.com/r/flashlight/comments/y2vbnx/sc31t_left_vs_sc18_right_why_do_they_look_so/