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

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

Thanks for this opportunity, really happy with it.

Just for curiosity:

In for 4000K 1 pc, 5000K 1 pc

Are these bare or on the shown mcpcb?

A5 bin 2pcs

On the shown mcpcb

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

Interested in 1x 4000K and 1x 5000K. Thanks

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

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

A4 bin 3PCS

Also add A4 bin 2pcs to my order

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 :slight_smile:

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.

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.

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

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

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.

Test:

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