Cool.
:+1: 
:+1:
As long as it’s coming sometime I’m happy. Thanks for all the work the team has put in.
Looking at the list in post #5 I see:
| Names | Request Numbers |
2017-12-01 PMs |
2017-12-09 PMs |
Third Round PMs |
| ... | ||||
| GHOSTSS | [1076 1077] | 0 | 0 | 2 |
| Giancarlo | [1192 1555] | 0 | 0 | 2 |
| gigbyt | [403] | 1 | 0 | 0 |
| ... |
You are listed for 2 lights, in position #1192 and #1555.
Third round of PMs will be sent out sometime after Chinese New Year. The PM will have instructions for paying.
Anyone see the cft-90 numbers in the blf gt? Vinh is getting about 1.6m cd and 5000 lumens driving it to about 20 amps or so. Since I measured 200k lux more on his tn42vn oslon flat black led via his numbers this one might measure more like 1.7 or 1.8m cd on my meter as vinhs numbers are usually low. While the price is not at all budget friendly its performance is not yet seen in led flashlights and to have a led flashlight with this much performance is like a dream come true. If you told me 10 years ago I’d own an led flashlight that hit 5000 lumens and did over 1.6m cd I’d of lmao at you. Thats why this hobby never gets old always new mile stones being hit performance and host wise. Please dont take this as gloating I’m simplely sharing this info incane anyone was interested in the numbers and this led.
Still no PM, and still no gt……
…start getting frustrated….to say the least…
The hype is over and people are passing it on….and here I am…without my gt.
Booooooring……
Interesting, I knew that LED would do better, nice to see it backed up in the real world.
Got a link to it?
I have never actually talked to Vinh come to think of it, I should get in contact with him at some point.
Wow! That site is still slow as molasses! That is one reason I don’t go there very often! They must be running the server on dial-up! :person_facepalming:
My two parcels have landed in France two days ago - feb. 17th. They are at the custom’s hub in Roissy and i’m hopping to get them in a week or so… After such a long wait and anticipation, it feels almost strange. :laughing:
[Quote]Wow! That site is still slow as molasses! That is one reason I don’t go there very often! They must be running the server on dial-up! :person_facepalming:
[/quote]
Yep! Painfully slow the vast majority of the time. :cry:
This link will take you directly to post #1 of vinh’s GT beamshots……
Lumintop BLF GTvn - Throw King
.
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HERE is a link to the post with the beamshots
Next batch?! You wrote that this is the last group!
It’s interesting. The CFT90 has a 3mm2 die, 9mm of surface area and Vinh is pulling 20 amps at “3v”.
The xhp50.2 has about the same size die and pulls 10 amps at “6v”. It will also do around 5,000 lumen. (With the dome sliced off maybe it looses a lot of output?)
With a sliced dome 50.2 I would not expect the lux to get higher than the xhp35-HI. It should get lower. (The xhp35-HI has a 2.35mm2 die and 5.5mm of surface area)
Maybe someone can explain this better?
Also, I wonder who will be the first to try a sliced 50.2 with 5A at “12v”?
Would it even be close to the cft90?
A batch is different from a group. We are talking about sending out a batch of PM’s, personal messages, to people that have all the purchase instructions and codes in it.
Batch 1 = PM for “first 555” people (#1 to #770 and $111) Dec 2nd.
Batch 2 = PM for #771 to #1049 ($157) Dec 9th.
Batch 3 = PM for #1050 to #1761 ($157) probably late Feb.
Make sense?
BTW, your qoute from above is old and outdated. All the latest info is on post #1 of this thread.
It would certainly not. That is the beauty of the CFT90. It can deliver high lumens with an intensity at a level, which has been unknown for emitters with that kind of surface area until now.
Unfortunately that comes at a price, both for emitter and driver.
But Vinh is not pushing the cft90 to its limit. This is what confuses me.
If you have two emitters with the same surface area and same lumen output, how can one produce higher lux than the other?
The cft90 is supposed to have a higher efficacy, but if you under power it with 20 amps (at 3v) and take a sliced xhp50.2 and push it harder to 5 amps (at 12v) then they should produce the same output. Maybe they dont?
Vinh is not pushing his cft90 to 27A or 30A or higher. He’s only doing 20A, yet it’s measuring higher lux than the sliced xhp50.2. (I assume)
If each where pushed to their limits then the cft90 should win, but as is, they should be pretty close.
IDK, there’s probably some important fact I’m missing.
Here is my understanding:
The CFT90 outputs 100% of it’s power towards the front.
The cree LEDs have light leaking out do the sides since the LES (light emitting surface) is raised, especially the .2 (and XPG3) LEDs.
This results in a spectral distribution that has lower intensity at the front but higher towards the sides and other angles.
(note this is relative, so in order for both to output the same lumens, the red line will not go all the way up to the same 100% as the black line)
This means that even though it outputs the same amount of lumens, less of those lumens are output from the top of the die (which is what gives the highest lux, measured at the center of the hotspot)
This is just for the .2 LEDs, however.
The reason the old XHP50 doesn’t do as good is because it is just four XP-G2 dies on the same chip, which results in more heat and less intensity.
The old XP-G2 alone dedomed does get about 200cd/mm&2 like the CFT90 is getting.
OMG it’s arrived! the reflector is perfect too, no customs and a 10 minute long chat with the postman who was ‘wow’…….
Testing tonight! It is a MONSTER!
Thank you everyone involved, I’m so glad you DIDN’T refund me!
I am in the UK on the list for the next payment batch at 1156 did you fill in the custom form and did you get some batterys included as it seems some parcels to the UK have been having problems
I am in the UK on the list for the next payment batch at 1156 did you fill in the custom form and did you get some batterys included as it seems some parcels to the UK have been having problems
I am in the UK on the list for the next payment batch at 1156 did you fill in the custom form and did you get some batterys included as it seems some parcels to the UK have been having problems