WTS/GB: [4000k ARRIVED] GT-FC40 (a.k.a. XHP70's flattop, 12v 40w sister) 95 CRI, Available in 4000k, 5000k

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rngwn
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WTS/GB: [4000k ARRIVED] GT-FC40 (a.k.a. XHP70's flattop, 12v 40w sister) 95 CRI, Available in 4000k, 5000k

Okay, the 4000k is arriving, here's final pricing:

 

I decided to included all the fees in the pricing (because I no longer feel like bother calculating it for every shipment)

 

Item Cost: $12.6

Shipping:

Method Destination Tracking Transit Time Cost incl. fees
Standard Canada Yes 1-2 weeks $6.3
Standard Rest of the World Yes 1-4 weeks $4.73
Ordinary Worldwide No 1-4 weeks $1.48

* If bought with other items, highest shipping cost of the same chosen method will apply (only one shipping cost will apply for one shipment).

 

Pay: https://paypal.me/rngwn

 ---------------------------------------------------------------------------------------------------------------------------------------------------------

Following the discussion on http://budgetlightforum.com/node/68689

Djozz's test: http://budgetlightforum.com/node/68899 

 

Meet the GT-FC40, the domeless sister of the XHP series. The one in the picture (on the left) is a 40w LED 5000-5500k (I'd say 5300k) that produces up to 3200lm at 95 CRI.

The one on the right is CREE's XHP70.2 5000k 90 CRI.

 

Specs (5000-5000k version)

Voltage: 12-14v (13.3v @ 3.0A)

Current: 3.0A (may tolerate above 3.5A, but not recommended) -- Djozz's test indicated that the LED may survive up to 7A (92W) for a few minutes with proper cooling

Output: 3000-3200lm (at nominal current)

CRI: 95+

Construction: Flip-chip blue LED, Silicone-based phosphors

MCPCB: 20mm star

 

 

The one above is on A5 bin (5000-5500k), but A4 bin (4000-4500k) is also available.

 

Anyone who are interested can sign up here, specify the amount and color. You can sign up for both colors, of course.

 

for example:

  • A5 bin 2pcs, A4 bin 3pcs.
  • 4000k 2pcs, 5000k 2pcs.

The regular price will be $12/ea, but if a color has the total order of at least 45pcs, OR at least 80 pcs for both color combined, the price for the people in the list will be $11/ea (the discount only applies to the color you signed up with).

 

I am targeting at least 35pcs/color or 60pcs  total before it's financially viable for me to buy.

 

The minimum you can buy is 1pcs, but you can contribute to lower pricing for everyone here by pushing the total. There are two methods of shipping: $4.5 Standard (Tracked, 2-4 weeks delivery time), $1.5 Economy (Untracked, 2-8 weeks delivery time *use at your own risk*).

 

Be responsible, I'm presuming that everyone signing up here are reasonably determined to buy. My motivation to find more stuffs in Alibaba depends on the success of this GB.

 

Here we are, 4000k has arrived. The 5000k will have to wait.

 

Die porn shot, A5 bin from previous sampling on the left, and the A4 (mass produced) on the right.

 

Color variation test on two LEDs @4000k: not exactly equal but at least both can be considered in a rosy territory.

 

As happened in the djozz's samples, the chip on the LEDs indeed aren't perfectly matched. At 9.0v we might see an entire row almost gone missing.

Bumping the voltage slightly to 9.3v and the entire array now lit up fairly evenly. Luckily, at 9.3v my lab bench didn't even register 10ma current-wise. So, the voltage mismatch doesn't seem as serious as it would look at 9.0v. For aesthetics reason, however, you might want to keep the voltage (esp. for ultra-low mode) at 9.3v or above.

 

 

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

Edited by: rngwn on 12/12/2019 - 14:48
rngwn
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Reserved for counting

 

Total order: (38/60pcs -- 80pcs for discount)

 

4000k buyers: (26/35pcs -- 45pcs for discount)

 

1stein -- 1pcs

KevinZA1988 -- 2pcs

Skylight -- 2pcs

DavidEF -- 3pcs

808Hi -- 2pcs

whipskirtayeyay -- 1pcs

SKV89 -- 2pcs

id30209 -- 1pcs

contactcr -- 1pcs

BueSwordM -- 3pcs

Shirnask -- 2pcs

Uncolo -- 2pcs

Texas_Ace -- 2pcs

sanches -- 2pcs

  

5000k buyers: (12/35pcs -- 45pcs for discount)

 

1stein -- 1pcs

808Hi -- 2pcs

KevinZA1988 -- 2pcs

whipskirtayeyay -- 1pcs

SKV89 -- 2pcs

id30209 -- 1pcs

BlueSwordM -- 1pcs

Unloco -- 2pcs

 

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

1stein
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Thanks for this opportunity, really happy with it.

Just for curiosity:

In for 4000K 1 pc, 5000K 1 pc

mattlward
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Are these bare or on the shown mcpcb?

EDC rotation:
FW1A, LH351D 4000k (second favorite)
FW3A, LH351D 3500k
FW3A, SST20 FD2 4000k
FW3A, Nichia 4000k sw40 r9080 (favorite light!)
FW3A, Cree XP-L Hi 5A3
Emisar D4V2, SST20 4000k
S2+, XM-L2 T6 4C

808Hi
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A5 bin 2pcs

rngwn
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mattlward wrote:
Are these bare or on the shown mcpcb?

On the shown mcpcb

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

Lux-Perpetua
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I wonder if these will be available in different MCPCB sizes.

KevinZA1988
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Interested in 1× 4000K and 1× 5000K. Thanks

Astrolux MF01 Mini, BLF Q8, BLF A6, BLF FW1A, BLF FW3A, BLF FW3C, Convoy L6, Convoy C8+ , Convoy S3, Convoy M21A, Convoy S11, Emisar D4, Fireflies E07, Jaxman E2L, Lumintop EDC18, Manta Ray C8.2 long version, Olight S1R Baton II special edition series, S2R Baton II, Nitecore HC65, Olight H1R Nova.

https://photos.app.goo.gl/JaJaDv4V838AEJf39

rngwn
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Probably not in the near future. They seems to be only have 20mm MCPCB in stock for now.

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

Skylight
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I would like two pieces of the A4 bin (4000K). Thank you.

DavidEF
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A4 bin 3PCS

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

808Hi
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Also add A4 bin 2pcs to my order

DavidEF
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Bumping because I’m surprised this hasn’t taken off a little bit more. Innocent

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

contactcr
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DavidEF wrote:
Bumping because I’m surprised this hasn’t taken off a little bit more. Innocent

12V and no testing is a pretty big barrier to entry. We are watching no worries Smile

Texas_Ace
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The 3A limit is also a possible issue if it truly can’t handle anymore then that. That could be a real issue with using FET drivers which would make it even harder to use these.

rngwn
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I quoted 3.0-3.5 A from the manufacturer’s spec sheet. I have no idea how much it can take more than that due to the lack of testing equipment. I sent the samples to djozz for this purpose.

In comparison, the 12v version XHP70.2’s are rated at 2.4A as the absolute maximum, yet I saw people overdrive the hell out of it.

These FC-40 can probably survive well above 3.5A (at least for a short period), but I probably don’t want to take responsibility for that claim. Wink

Anyway, djozz has gotten samples, and I hope he publishes the result soon. Keep an eye on the discussion thread.

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

Texas_Ace
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I thought it strange that the limit would only be 0.5A more then the rating.

whipskirtayeyay
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Definitely interested in:
(1) 4000k
(1) 5000k

WTF
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Texas_Ace wrote:
I thought it strange that the limit would only be 0.5A more then the rating.

Clemence had problems placing four E21a’s too close together, some of the photons would go out the side of the emitter and heat up the one beside it. It lead to the whole array overheating and dying.

This led has the advantage of phosphor between the dies but the four in the middle may have a hard time trying to stay cool.

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SKV89
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Please put me down for
2) 4000K
2) 5000K

Texas_Ace
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Thanks for the test Djozz. Very interesting results.

I would be interested in a ~4500k 95CRI version for testing depending what my funds look like at the time.

If 4500k doesn’t happen then I could go either 4000k or 5000k. Both if I have the funds available.

If you could get this LED in 3V I would seriously consider swapping my EDC over to it. Just sad there are no TIR optics for this size LED in 20mm.

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They said they can do 6v if there is enough demand, but that usually means thousands of pieces to be ordered. That’s something I don’t want to risk going bankrupt over. Maybe @Djozz could try desoldering one of these and see what’s beneath it and if swapping to 6v MCPCB is possible. I previously sent him two pieces so he can abuse one of them as much as he like. Evil

4500k seems unlikely as they usually make A5, A4 and C2 bins in their other product stack.

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

id30209
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1pc 4000k

1pc 5000k

WTB Titanium 4sevens Quarks & Jetbeam TCR1

contactcr
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Anyone care to guess the throw vs xhp35 hi at the same current?

rngwn
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I’d hazard guess slice&diced XHP70.2 in term of beam profile, but less overall brightness due to “CRI Tax”

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

KevinZA1988
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Please double my initial interest. Thanks

Astrolux MF01 Mini, BLF Q8, BLF A6, BLF FW1A, BLF FW3A, BLF FW3C, Convoy L6, Convoy C8+ , Convoy S3, Convoy M21A, Convoy S11, Emisar D4, Fireflies E07, Jaxman E2L, Lumintop EDC18, Manta Ray C8.2 long version, Olight S1R Baton II special edition series, S2R Baton II, Nitecore HC65, Olight H1R Nova.

https://photos.app.goo.gl/JaJaDv4V838AEJf39

contactcr
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1× 4000k for me

dmsoule
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Thank you for organizing this. Any possibility of including the A3 bin?

rngwn
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I will focus on A4 and A5 in this GB run. Other bins may be possible in the next round, if this run is successful.

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

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My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

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