Maybe XP-G2 3D on copper next if XP- boards are in the works?
I recommend Tom E and relic38 for testing
Also, when the Nitecore i4 charger comes back in stock, will it be the same price, be the v2, and can I get an eta?
I would recommend Relic38 for doing review…
Or Match if he is still doing that stuff, Texaspyro, Tom E ……
Would be nice to have at least two different people doing the reviews. 
The Nitecore chargers we’ve been selling have always been V2s. ETA a week and a half?
Me wants, me wants 
I Am no expert and don’t have proper equipment but that doesnt make them any less desirable 
Fu*k gold and silver, we fancy copper here. LOL
Ordered. I had to try one of those 90+ CRI XM-L2's too. I wish those copper stars were an option.
We've hit a snag in our plans to release our direct thermal copper line. I'll update with news when we know more.
In your pre-order descriptions of the Nitecore SRT3 on the IS-site you forgot to mention the battery type used. (very nice looking light by the way)
Added to listing:
Specifications
LED: Cree XM-L2 T6 (Max output 550 lumens)
Beam Distance: 134m
Peak Beam Intensity: 4500cd
Impact resistance: 1.5 meters
Waterproof: IPX-8 2 meters
Battery types: (R)CR123, AA, 14500 (Li-ion, LiFePO4), L91
(AA sized batteries use the included extension tube)
Please also note the max output can only be achieved with a lithium-ion battery. Please refer to the chart below:
Zebralight confirmed tracking of H502W and SC52W on the way to us. We placed two orders of the SC52W to Zebralight consecutively, one small and one large. The first batch should fulfill the majority of pre-orders from May to a little over the middle of June. The second batch is set to ship out next week per Zebralight correspondence.
All H502W pre-orders have been fulfilled and a healthy stock are ready for shipment now. The majority of SC52W pre-orders have also been fulfilled and we are awaiting the shipment notice (expected this week) from Zebralight for the remainder of our order.
Hey everyone, we're proud to announce our line of copper direct thermal mounted LEDs!
We're first starting with the XM-L2 and depending on the popularity, may expand into other selections.
Ready to ship now are 4000K, 5000K, and 6500K XM-L2s, check the links below for more information.
Cree XM-L2 16mm Round MCPCB Copper Direct Thermal, T5, 5C1 (4000K)
Cree XM-L2 16mm Round MCPCB Copper Direct Thermal, T6, 3C (5000K)
Cree XM-L2 16mm Round MCPCB Copper Direct Thermal, U2, 1C (6500K)
These are CREE XM-L2 LEDs mounted on copper direct thermal boards. The backs are flat without air pockets and nickel plated. Mounted with a pick and place machine for high precision over hand soldering, these boards also contain 3mm screw holes for mounting. This copper direct thermal solution lets you squeeze the most performance out of your XM-L2 due to its superior thermal properties.
As usual, thanks for your support!
Craig & Calvin
Nice work! Glad to see them listed! 
Are you planning the same with 20mm boards? Also, any plans for XP-G2?
Looks great Calvin. I'm glad you don't have 14mm since I just ordered some of your aluminum 14mm boards earlier today.
Sorry if this has already been addressed, but has the insulative layer on these copper MCPCB’s been eliminated under the emitter thermal pad contact area for direct copper/solder/emitter contact? Some copper boards are still “old-school” in that they still retain the insulative layer between the thermal pad and copper board.
I believe it was mentioned in the first post Calvin did on these. Direct bonded.
I really like the provision for screws too. I’ll have to whip up a new batch of Mag heatsinks soon.
There is no diaelectric layer underneath the LED thermal pad.
Thank you!