Luminus SST-40, a N4 BA bin tested

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MRsDNF
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LightRider wrote:
I got them from here&.

I don’t remember how I got the link to this store? Thought it was recommended by someone. The price is pretty cheap. Maybe they are fakes or b-grade factory rejects? I have not tryed them out yet. They look genuine but who knows.


Thanks LightRider. Maybe I missed it but couldn’t see a bin mentioned anywhere.

My current and or voltage measurements are only relevent to anything that I measure.

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LightRider
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MRsDNF wrote:
LightRider wrote:
I got them from here&.

I don’t remember how I got the link to this store? Thought it was recommended by someone. The price is pretty cheap. Maybe they are fakes or b-grade factory rejects? I have not tryed them out yet. They look genuine but who knows.


Thanks LightRider. Maybe I missed it but couldn’t see a bin mentioned anywhere.

I don’t see it either. When these came in the mail I had to search my accounts because i did not remember ordering them at all. I don’t know why I would order without knowing the bin and I wouldn’t just randomly search for a store and buy something like this so I have no idea what I was thinking. Weird…

tm07
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Hi guy, I order some luminus sst-40 led from aliexpress seller (Shenzhen OT-LED Technology Co.,Ltd) https://www.aliexpress.com/item/10PCS-Luminus-SST-40-10W-LED-1100lm-Cool... I ordered two separate order, first order was 2 piece and Second order 20 piece. The first 2 piece is real sst-40 the last 20 is not. here is proof look at the photo. the top 2 is the first 2 piece I got is real, and bottom 2 of the 20 piece is not real. all 20 piece on second order I got is not luminus sst-40. (fake). more like fake xml2 to me! no matter what I try, I cannot DD this led. I only left in M.E.K for 15 min this is what the led turn out. when people say you get what you pay for, now I know is true. I buy it from here because one of the members say is real deal. maybe he got his real but not my. I pay $16.00 for 10 piece x2. This Aliexpress Seller Shenzhen OT-LED Technology Co.,Ltd sell me fake Luminus SST-40!

mattlward
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To me the bottom 2 look real… The top 2 look like some XM die maybe or a clone of the XM. The SST-40 has the little dots in rows and the part that holds the die is silver.

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tm07
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if you zoom in closely you will see the difference in this photo.
EasyB
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The SST-40 has the black line separating the pos and neg metal parts around the die. The two bottom (fake) emitters pictured don’t have the black line.

The SST-40 does have the dots arranged in a square pattern as opposed to XML2 and XPL which have the dots in more of a diagonal/hexagonal pattern.

I think a lot of the lattice bright XML2 clones had the dots in the square pattern. I bet these crooked Chinese vendors are happy that they can again easily offload these fakes since the SST-40 die now looks very similar.

Dave G
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Damn, I will have to see what comes in my order. I have some coming from both places, Kaidomain and Aliexpress. They were cheap and I want to practice de-doming.

khas
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I have made three separate order for 5 LED’s from Shenzhen Great Technology Co.,Ltd so far they all turned out to be SST-40’s :

I guess I just got lucky

tm07
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If you zoom in look closely, yours have a black line my don’t. you got the real sst-40 and got fake sst-40.

khas
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Did you get yours from Shenzhen OT-LED Technology Co.,Ltd, or Shenzhen Great Technology Co.,Ltd ?. Your link points to Shenzhen Great Technology but the text says Shenzhen OT-LED Technology Co.

tm07
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I got from Shenzhen OT-LED Technology Co.,Ltd. “Sorry” I link it wrong! I corrected back already. where did you get yours?

luminarium iaculator
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Maybe even fake are as good or better than original ones. Please check them.

Modding is making something how you want it to be, not how it comes stock...

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tm07
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I test eight of them so far they all 8 bad!
tm07
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On my clamp meter fake one read 4.90A and the one from kaidomain 7.71A, same host same battery and same driver.

pilotdog68
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Sorry to go off the current topic, but can anyone comment on thermal efficiency? Assuming the same wattage, will these get hotter than the comparable Cree?

My Favorite Modded Lights: X6R, S8 , X2R , M6, SP03

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khas
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tm07 wrote:
I got from Shenzhen OT-LED Technology Co.,Ltd. “Sorry” I link it wrong! I corrected back already. where did you get yours?

I got mine from Shenzhen Great Technology Co.,Ltd

tm07
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khas wrote:
tm07 wrote:
I got from Shenzhen OT-LED Technology Co.,Ltd. “Sorry” I link it wrong! I corrected back already. where did you get yours?

I got mine from “Shenzhen Great Technology Co.,Ltd”:https://www.aliexpress.com/item/1PCS-Luminus-SST-40-10W-LED-1100lm-Cool-...

maybe that’s why! I wish I got from Shenzhen Great Technology
EasyB
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pilotdog68 wrote:
Sorry to go off the current topic, but can anyone comment on thermal efficiency? Assuming the same wattage, will these get hotter than the comparable Cree?

The lower Vf of the SST-40 should mean it is more efficient than the XPL. These emitters produce roughly the same amount of light at a given current, so the ratio of the Vfs at a given current will give the relative efficiency. The SST-40 is about 15% more efficient meaning it converts more of the input power to light rather than heat.

So at a given current the light output is the same, and the input power and heat production is less for the SST-40. At a given wattage the SST-40 produces more light (more current), and produces less heat.

pilotdog68
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Thanks EasyB.

So real-world example. I was running 4P XHP35 through a FET on 4S 18650. It was really bright, but the host couldn’t handle the heat. I’m guessing these would get me around 2,000 lumens less, but possibly similar lux and less heat? (in 4S instead of 4P, obviously)

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AlexGT
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I want to order a couple, Is Kaidomain selling real ones? Thanks!

tm07
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I have five from Kaidomain, they are real!
EasyB
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pilotdog68 wrote:
Thanks EasyB.

So real-world example. I was running 4P XHP35 through a FET on 4S 18650. It was really bright, but the host couldn’t handle the heat. I’m guessing these would get me around 2,000 lumens less, but possibly similar lux and less heat? (in 4S instead of 4P, obviously)

Sounds about right. Though these will pull a lot of current so it will still be a lot of heat. But unless you use a good buck or boost driver you won’t see the efficiency gain over XPL V6. I think the real advantage of these over the XPL V6 is their ability to be driven harder in a direct drive situation.

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tm07 wrote:
I have five from Kaidomain, they are real!

Thanks tm07, ordered some! Beer

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pilotdog68 wrote:
Thanks EasyB.

So real-world example. I was running 4P XHP35 through a FET on 4S 18650. It was really bright, but the host couldn’t handle the heat. I’m guessing these would get me around 2,000 lumens less, but possibly similar lux and less heat? (in 4S instead of 4P, obviously)

WhT host are you using?

gamezawy
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thank you djozz for taking the time and effort for doing this tests, you are a wiki to me plz dont stop

Thank you 1000 times

MRsDNF
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gamezawy wrote:
thank you djozz for taking the time and effort for doing this tests, you are a wiki to me plz dont stop

Thank you 1000 times


We have something in common gamezawy. Smile

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

Dave G
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I got my SST-40s that I ordered from Shenzhen Great Technology on AE. All three appear to be the real deal. I also got one from Kaidomain and it is also a real SST-40.

There are some slight imperfections though. The one from KD and one of the Aliexpress ones are slightly raised. Probably not enough to be a concern since there is still solder under the center of the emitter. I will probably try to get the Ali one seated correctly since I plan on driving that one harder than the others. The DTP copper feels soo much nicer compared to the thin aluminum boards the others are on.

gamezawy
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Dave G wrote:
I got my SST-40s that I ordered from Shenzhen Great Technology on AE. All three appear to be the real deal. I also got one from Kaidomain and it is also a real SST-40.

There are some slight imperfections though. The one from KD and one of the Aliexpress ones are slightly raised. Probably not enough to be a concern since there is still solder under the center of the emitter. I will probably try to get the Ali one seated correctly since I plan on driving that one harder than the others. The DTP copper feels soo much nicer compared to the thin aluminum boards the others are on.

Dave G is this the seller you bought your leds from him ? Store:Shenzhen Great Technology Co.,Ltd.

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About heat:
I tested in a convoy C8 host samsung 25R battery, 10×7135 3500ma driver and with xpl HI the light got 60°C after 15 minutes.
Same everything with SST40 I got 61°C.
The XPL HI output with full battery is 1056 lumens and the SST40 I measured 1122 lumens.

Dave G
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@ gamezawy – Yes that is the seller I bought from.

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