Cree XHP70 up to 4022 Lumens and XHP50 up to 2546 lumens - Multi-die leds.

Think the price is ok
for four LEDs and a cooper Star.
Bought one…

you can get the bare XHP70 at leddna for $15.30 with code BLF15
http://www.leddna.com/cree-xhp70-led-n2-3a-neutral-white-bare-5000k-up-to-4022lm/

I got builds to do. I just ordered 10 of the 5000k XHP70. Now it's time to go visit RMM. Gonna be a very expensive day today.

I just tried to order 5. I received a pop up message saying they didn’t have that many in stock. I tried 2 and it went through. $15 each and NW is a game changer for me. I have sinkpads on their way already. First thing I will do is put one in the Defiant 3D from last year, just to see how that goes.

XHP70 N4 bin 5000k 1710 Lumens 3C tint. Just picked up a couple from Cutters in Aus. Welight here is the guy to talk to. This picture was taken from the packaging the leds were in.

Those are fresh!

That sticker says MIC on it.

No. Cree's headquarters are in the USA, but I'm pretty sure they're all made in China.

I ordered from leddna. Supposedly they did not have the stock. They sent me five and five more should ship in another week, when they restock. Sinkpad sent me stars for them, so my XHP70 3-up and 4-up lights are good to go here in a few weeks. 3-up @ 9 amps each and 4-up in series at 3 amps.

9 amps EACH??

Mercy…

I’ll bring the marshmallows for roasting

I owe a lot of thanks here to you guys as in the not to distant past this would of resulted in tears and cost a small fortune. I've managed to mount one XHP70 on a 26mm MTG copper star and it works.

There appears to be plasma jumping from that emitter…… ^
:bigsmile:

Maxtoch? Ive always read it as Maxtorch…

Plasma sounds better than a shard of cotton wool.

Flashlight porn :heart_eyes: I’ve got a bare XHP70 on the way and have the sinkpad… Never reflowed a LED before and don’t want to screw this one up, gotta practice on some old XM-Ls. Any tips for a first timer? Can I do it with a hot air gun and solder paste?

Heres one of Old Lumens earlier videos on reflowing.

Theres lots of others but cant seem to find them at the moment. What you suggest is what I use.

Yeah, Ive seen that one… but at the very end he says it would probably be better with a hot air station, which is what I have. I guess I’ll do some trial and error with old XM-Ls I’ve ripped out of other lights.

I can still recommend for reflowing all sorts of stuff building a heatblock like I did by rebuilding a 12V 40W solder iron, post 27 of this thread:

That’s cool… or actually not, it’s hot. Did you fabricate that alu block yourself or did you get it ready like that? And thanks for the video, but I gotta confess: I didn’t run the volume down, I turned it up :bigsmile:

If you’re at all concerned about coming somewhat close to the manufacturer reflow profile I suggest using a hot-air gun and clamping the mcpcb to a sizeable cpu heatsink.
Then just blow the hot air through the heatsink fins underneath until things start to melt.
Use a thermometer to monitor the temps if you want but it will allow you to more gradually heat up the equipment to the melting point. Then also more gradually cool it down to avoid any thermal shocks. Just my method that I’m comfortable with.

Edit: …or build Djozz’s lamborghini of reflow heaters that thing is great! :slight_smile: