Sorry, I didn’t investigate clearly. LatticePower may make and sell both chips and emitters.
However, ChangDa(昌达) does not have any relationship with Luminus. ChangDa is just an independent small manufacturer that buys chips and packages them into emitters and sale. They actually have a Taobao retail store. As you can see, most of the SF(H, N, P, Q, Y) emitters thought to be manufactured by SanAn are actually manufactured by ChangDa, ChangDa just used SanAn’s chips.
PS: No need to try to understand the text in the product description other than the charts and graphs, that’s just advertising speak mixed with a lot of Wuxia/martial-arts novel phrases.
No need, the click-baity “XHP70.4 HI” or “XHP35.3” are enough
The difficult thing for me is that there are no official confirmations or sources. If SFN60 and co. are all produced by ChangDa, surely there should be more or less official information somewhere? Couldn’t it be that some random Chinese manufacturer sells such LEDs or calls them that?
Btw - Is it actually a coincidence that the nomenclature of the Luminus LEDs is very similar to that of ChangDa (SFx and so on)?
After so many conversations, I actually understand what you mean. Maybe ALL IN ALL, maybe LED manufacturing isn’t so serious?
This may also answer your last question, perhaps in China, manufacturing LEDs is a relatively casual thing, I can’t say for sure how many employees ChangDa has, but they are registered as a “micro-enterprise”, and many enthusiasts call them small/family workshop.
Maybe they do have a more “serious” datasheet pdf, but maybe it’s just a product description without the Wuxia phrases, or it’s still included.
As for the nomenclature, I am more inclined to the coincidence that ChangDa has long regarded CREE as a competitor rather than Luminus.
So San’an is a parent company only and OEM for parts to the other electronics manufactuters? What about Luminus? I heard a while back that San’an did make the SFN and SFH LEDs (I think a Chinese source?) and primarily sold on Taobao. I’d like to know who actually is making all these ‘one hung-lo’ LEDs too since there seems to be so many. Nitecores UHi leds for example, the 5050 size round die, LMP, Pxx HI and HPx leds.
SanAn makes the emitter chips, just like most electronics chips. It’s just one part of the whole product and doesn’t mean SanAn is an OEM or the parent company of any other company.
Luminus is indeed a wholly owned subsidiary of SanAn that makes the emitters, and has some access to the latest or best SanAn technology.
If you saw my last comment, you can see there are many Chinese emitter manufacturers making various “SanAn(chip)” emitters, ChangDa is one of them. LMP is yet another emitter manufacturer, not sure whose chips they primarily use.
btw I don’t know what “one hung-lo” means, ChangDa may like to brag, Uhi may be too green, but they are far from being crappy, to be fair, they are pretty good.
Thanks for the info. No, not saying they’re crappy in any way shape or form. Truthfully some of the Cree XHPxx.x clones and XMx clones aren’t bad at all. They might even have better beam quality than the Crees. However, what they can’t match is efficiency, especially in the 6 volt and 12 volt configuration and some 3 Vf LEDs. They don’t perform as well or consistently.
But here I am pretty sure that “UHi” is just some sort of brand, and not resembles the manufacturer.
For me, the biggest problem with these domestic chinese LEDs at the moment is that they almost always have significant disadvantages:
no real information, no datasheet, no references
poor availability, if at all
wide variety in color and flux bins
in many cases unpleasant tint (for me the biggest issue)
some quality problems (poor quality, dirt in silicone/phosphor, scratches in glass, very brittle silicone, etc.)
They do exist, the LEDs that are really good, such as the “Yinding 5050 6500 K 90CRI” or the FFL351A/FFL505A, which do virtually everything right in their specific area of application. However, the LEDs from Aliexpress are a bit of gambling in this respect: nobody knows exactly what’s inside.
