For those who love warm XHP50.3 HI 3000K, XHP70.3 4000K 90CRI
available here
Too bad we don’t know what the tint is like. If we know for sure it has rosy good tint, I would buy.
Have you ordered from this site before? They mention shipping to Russia & Ukraine, do you know if they ship to EU/UK?
Do I try a 70.3 in my FET L6?
Maybe I’m not so good at reflowing, but these XHP50.3 HI 4500K 90CRI LEDs seem to be rather fragile when it comes to current. I went just above the limit on two of them at 12V and they burned out rather quickly. My heat sinking was probably not adequate either but for now I I’ll give up on these until someone who knows what they are doing does a more thorough test.
I got a 6v XHP50.3 HI doing 4k lumens I think the current draw is like 8-9 amps it’s okay but I’ve only used it for testing. I tried to reflow one and the dome melted.
Must be my crappy reflowing… I should stop buying bare LEDs and only get mounted to MCPCBs by people who know what they are doing.
I re-configured my driver for 6V and put in a MT-G2 instead, those things take a lot of abuse.
Soldering the XHP70.3 LED on a copper substrate DTP.
I can check with a spectrophotometer. If you are interested.
Svitlo, are you the owner of Beriledz? :)
Always fun to see someone else’s reflows and tricks, thanks for making the video. 
A spectrometer test would be nice, I always prefer (also) a measurement with a reflector on the led and measuring in the hotspot of the beam.
Colorimetry results would be welcomed indeed, and like Djozz said, a real world measurement is preferable, especially not a bare LED measurement with the device right above it.
Something like a spot/corona/spill measurement with a reflector like this doesn’t take too long to do and is quite informative about the LED.
Yes please!
Hey where can I buy the 4500k ones? I searched AE, Kai, Google. Anywhere else I should be searching?
Digikey has domed version in 4500K and 90cri.
They have 26 different XHP50.3’s in 90cri on stock, so pick your poison.
Thanks, I will spend some time there.
Bought recently the following device for reflowing: https://www.aliexpress.com/item/1005003152742159.html?spm=a2g0o.9042311.0.0.27424c4dOApUWg.
So far it works fine.
Interesting thing for a great price.seems like the temp-regulation feedback is completely done inside the heater itself, a simple mechanical bi-metal thermostat? The 260 degrees is a bit high for reflows with simple 63/37 Pb/Sn solder, more appropriate for the higher temp solders.
This looks very useful. I noticed there is an option to purchase with US plug, but the voltage states 220V. US wall outlets operate @ 120V. Do you know if it will operate at 120V and still reach full temperature?
Thanks