[PART 1] Official BLF GT Group Buy thread. Group buy officially closed! Lights shipping.

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Pöbel
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JasonWW wrote:
alex1234 wrote:
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.

Would it even be close to the cft90?

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.

JasonWW
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Pöbel wrote:
JasonWW wrote:
alex1234 wrote:
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.

Would it even be close to the cft90?

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.

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Enderman
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JasonWW wrote:

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.

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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!

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G0OSE wrote:
OMG 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

Nightcore ST-7
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Buttkicker
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G0OSE wrote:
OMG 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

Nightcore ST-7
Astrolux MF-02
Astrolux MF-01
Utorch UT-02
Thrunite V6 catapult
BLF GT Gigathrower
Astrolux MF-04

Buttkicker
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G0OSE wrote:
OMG 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

Nightcore ST-7
Astrolux MF-02
Astrolux MF-01
Utorch UT-02
Thrunite V6 catapult
BLF GT Gigathrower
Astrolux MF-04

bella-headlight
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Mine has now arrived in the Royal Mail Cardiff sorting office, some 20 miles from me, as of midnight last night Thumbs Up
I have received no communication from customs so there can“t be any VAT or courier handling fees to be paid Smile
It can only be a day or 2 away from me Thumbs Up

Ian

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Mine has now arrived in the Royal Mail Cardiff sorting office, some 20 miles from me, as of midnight last night Thumbs Up
I have received no communication from customs so there can“t be any VAT or courier handling fees to be paid Smile
It can only be a day or 2 away from me Thumbs Up

Ian

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Take it easy on that POST button Big Smile

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Buttkicker wrote:
G0OSE wrote:
OMG 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


Yes I filled out the customs form , but there was nothing at all on the box at all to say value, simply a royal mail 48 tracked sticker, it literally looks like someone in the UK sent it! ( I have never had anything from China without customs labels on, weird? I am certainly not complaining Big Smile )and no I didn’t have batteries.
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NikolaS wrote:
Take it easy on that POST button Big Smile

Something wrong with the site this morning NikolaS – it’s very slow and jerky, I had real trouble posting, it took several attempts. I even shut the browser down and restarted it, but made no difference.
Essexman
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Royal mail tracking shows “out for delivery today”

I feel quite emotional.

bella-headlight
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Mine was delivered about an hour ago Thumbs Up
Got 8 × 30Q“s on charge as we speak.
I took some pics of unboxing but for some reason dropbox is not syncing them to my laptop.
Anyway fit & finish is very good, everything is very clean & dust free, threads are smooth & lubed, there are some light machining marks on the reflector but nothing of any concern & the led is well centered.
If I can get the pics to upload to my lap top I will post them but it is safe to say that I am a happy bunny.
Oh by the way the light is HUGE Smile
Big Thumbs Up to Lumintop & the team, especially TA Smile

Ian

Nev
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Are theses gt’ that are arriving in the uk sent by registered mail or dhl?

bella-headlight
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Nev wrote:
Are theses gt’ that are arriving in the uk sent by registered mail or dhl?

Mine should have been registered mail but as it left Hong Kong on the 12th & is with me on the 19th it obviously was not sent as registered mail as that takes at least 4-6 weeks.
Also there is no mention of it coming from China on the box, in fact it looks like it was shipped from a London address.

Ian

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Ian

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Mine is probably arriving this week too. Finnish Posti tracking service now shows 1 out of 2 Malaysia Post shipments and says “item arrived in the destination country” today.

I don’t know if there are several definitions for “registered mail” but I always thought it just means a postal service that is more than a simple letter, as in having a tracking code. Whether a retail company arranges the tracking information to be handed out to the customer beforehand is whole another issue. Smile I think a lot of the time(with dx, bg, gb etc) the only difference is if tracking number is given to the customer, and the mail service is the same. I sometimes receive stuff that was not supposed to have tracking – and I did not have it – but a notice with tracking numbers shows up and a signature is needed at the post office.

I also thought the “alternative shipping option” for “2 parcels by registered mail” originally just meant that one could ask not to be shipped DHL but instead via a traditional mail service. Not necessarily something that always takes 4-6 weeks, while I was prepared for that. Now it seems it’s taking a total of about about 8-10 working days for my shipment to arrive, and for some UK members ~5-6 working days. That is fast but not unheard of. In my limited experience about 1/3 of Asian mail shipments arrive in just over a week, most takes 2-4 weeks and sometimes it takes 4-6 weeks.

bella-headlight
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I have always understood that registered mail from China or Hong Kong is via sea as opposed to air : ie the slow boat from China that is often referred to.
Maybe I am wrong.
Either way this light has taken 7 days to get from Hong Kong to me Thumbs Up

Ian

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I received my GT today, 2 parcel registered, it had a pretty big nick, charging 30q batteries to try it, it’s a monster in size, just showing it to 2 people made them laugh out loud.

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Big smiles from UK as I am now in possession of my GT. Cells on the chargers, cannot wait. Thanks team.

Cn

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Tracking says mine is delivered! I get to continue the agonising wait because I’m abroad with work for another couple of weeks Silly

Tuigali
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GT arrived today, without any extra letters re customs.

Considering HK customs seemed intent on me not having it, sending it back THREE times, I’d say it’s been a relatively quick process.

Thanks to all involved, can’t wait for a large search at night to come in at work so I can use it properly Smile

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DHL announced my package to arrive tommorow – handling in Germany seems to be via Sun Logistik Service GmbH!

No clou if they want ‘extra money’ from me!

On it goes …

' Lumen est omen '

Hope is no option!

gravelmonkey
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bella-headlight wrote:
Mine has now arrived in the Royal Mail Cardiff sorting office, some 20 miles from me, as of midnight last night Thumbs Up I have received no communication from customs so there can“t be any VAT or courier handling fees to be paid Smile It can only be a day or 2 away from me Thumbs Up

Tuigali wrote:
GT arrived today, without any extra letters re customs.

Considering HK customs seemed intent on me not having it, sending it back THREE times, I’d say it’s been a relatively quick process.

Thanks to all involved, can’t wait for a large search at night to come in at work so I can use it properly Smile

Bear in mind it’s not unheard of for delivery companies (DHL especially) to send an invoice a few weeks after delivery asking for VAT and handling payment.

Nev
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It would be a bit late once you’ve got your GT , guess what they can do with that request Evil

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11.02.2018 03:37:50
1 day Item despatched to Transshipment hub
SHENZHEN cPacket Express

11.02.2018 03:42:14
1 day Received shipment
Shenzhen cPacket Express

11.02.2018 03:43:14
1 day Processed at origin hub
Shenzhen cPacket Express

13.02.2018 07:23:15
3 day On Vehicle to Transshipment Hub
Shenzhen cPacket Express

15.02.2018 02:45:10
5 day Electronic information submitted by shipper
RICHMOND cPacket Express

15.02.2018 19:50:00
5 day Uplifted from Transshipment Hub
HONG KONG

Not sure what that last one means (Uplifted from Transshipment Hub)… but I am happy to see that its on its way to me! Big Smile Thanks to everyone involved in any and ever way with this project, your hard work and dedication is greatly and truly appreciated!

bella-headlight
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gravelmonkey wrote:
bella-headlight wrote:
Mine has now arrived in the Royal Mail Cardiff sorting office, some 20 miles from me, as of midnight last night Thumbs Up I have received no communication from customs so there can“t be any VAT or courier handling fees to be paid Smile It can only be a day or 2 away from me Thumbs Up

Tuigali wrote:
GT arrived today, without any extra letters re customs.

Considering HK customs seemed intent on me not having it, sending it back THREE times, I’d say it’s been a relatively quick process.

Thanks to all involved, can’t wait for a large search at night to come in at work so I can use it properly Smile

Bear in mind it’s not unheard of for delivery companies (DHL especially) to send an invoice a few weeks after delivery asking for VAT and handling payment.

Mine was delivered by Royal Mail tracked 48 hour service & came from a London address.
It looks to me like Lumintop shipped the light to London & then someone in London shipped it to me via Royal Mail.
Who was yours delivered by ?

Ian

bigrick
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Just a question are there more shipments like this ?

2018-02-07 08:16 The Item is at the shippers warehouse

Nitecore HC60, Convoy L6 XHP70
BLF A6 1a’s,Astrolux S2, BLF 348’s
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gravelmonkey
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Nev wrote:
It would be a bit late once you’ve got your GT , guess what they can do with that request Evil

Well, they’ve your name and address, and tax owed is a legal obligation, so I guess details will get passed to a debt collection agency.

But I’m just speculating and pointing out that it doesn’t matter you’ve received the GT already.

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