Thanks for the spec sheets - it seems like you are also an avid Taobao browser. The SFN60 is more efficient than the SFN55 but I haven’t seen it any flashlight manufacturer use it yet.
The Chinese manufacturers now appear to have the ability to produce flat, high CRI, high output 3V emitters. Even round emitters are possible as with the Yinding. Emitter size is still an issue though. Unfortunately, they aren’t really targeting the flashlight market.
This fella in the reviews section said is not high CRI, according to what the seller told him. There will be high CRI release in future though. He reviewed on 3rd of Apr 2022.
He bought a SFN60 3000k@CRI90.
问了老王，才知道只是低色温，并不是高显色的。3000k高显色版本光通光效会大大降低同时发热会明显增大。后来商家主动沟通，说后续会有高显色的并且会补发，后续拭目以待，也希望国产能脚踏实地越做越好。
2022年04月03日 12:11颜色分类：SFN60_3伏_9芯*60mil_XHP70款E[35A极亮10000流明] 选色温：3000K@CRI90 选基板：灯珠（不带板）
Another fella in the reviews section said the efficiency is also lower than Cree. This is what i noticed too from my usage from the JKK76 with 7pcs SFN 55.2 6500k and Amutorch DM70 with just 4pcs Cree 70.2, both at say similar OTF output. In fact, the JKK80 ceiling bounce is 180 raw value, and DM70 is 200……corresponding to 2k+ lumens OTF. After 8 minutes, the Amutorch DM70 is slightly cooler, despite it being a slightly smaller light with lower mass and only 4 emitters (i think both SFN 55.2 and Cree 70.2 have similar emitter die surface area if i am not terribly wrong).
Is it possible that the driver efficiency makes such a big difference between the 2 lights? I doubt it.
t*6
性价比很高，最大的优点就是便宜，几块钱的p50都可以达到creexhp70的亮度，是我见过最便宜的小面积，大功率led，缺点是光效相对较差。光效为cree的45%–75%左右，毕竟cree在材料和技术上有深厚积累，卖的led也是天价。。需要注意的是即使电压很高，只要电流没达到额定值还是可以一直通过增加电压来增加电流，当电流达到某个值之后，再增加电压，这时电流可以在增加，但亮度不增加，需要自己找最合适的功率。 下面是我测试的数据，可以供大家参考，第一组是cree xhp 70的数据，淘宝200块的手电筒，下面三款都是这家的。测试时，手电筒和led灯都是加上同样的聚光杯，在同样的位置直射向天花板，亮度感应器向上平行放在led位置附近，测的是天花板反射的亮度，因为直接测数据跳动太大，误差太大。已知cree的手电筒极亮时3200流明，可以得到标准流明与测试值的比例大概1比13，再推算出这款led的流明数据。
Yea bro, no $$, hence gotta buy a lot of my stuff from TB and similar platforms. :person_facepalming:
I used to buy a fair bit from Amazon USA when they still had the usd 125 free shipping service….from Amazon LLP, not 3rd party….mainly more branded stuff.
But about 2 years ago, cainiao took over the few official forwarders (4PX, Prouter, 中通 etc), did a monopoly and then of course with the shipping increase, prices shot up like 2 times. eg last time i remember was 9.5rmb or 10rmb per 0.5kg (first 1 kg 29rmb to 43rmb depending on forwarder). Now is 20rmb for initial 0.5kg and subsequent 0.5kg 20rmb.
Then for sensitive items that Cainiao refuse to ship, i use private agents which then use certain forwarders (eg ComOne)……which use a certain land route into HK and then air ship out from HKIA. Cainiao now ships through either Shenzhen or Guangzhou (Bao-an or Baiyun), and another one from Shanghai pudong i think (warehouse in Hangzhou)
SFN60 used by dongdonghai, i gave the TB link above.
Too bad, they are driving it only to 3000 lumens, i confirmed with the seller as well. They also dont do bigger lumen monsters also, which i dig. heh….
This fella’s ceiling bounce testing……
Voltage, current, power, meter raw values, estimated lumens, lumens/watt efficiency
SFP 55. 22k lumens……but i guess more like 15k lumens practical. Need 4-7 pcs of this into a 1kg host powered by 4 pcs of 21700 and with a basic but reliable driver….the chinese can do it….just whether or not it is profitable domestically 
I actually have a xtar triple xm-l with magnetic ring selector switch weighing like 1kg with its 90mm head, and i remember the Haikelite MT09R triple 70.2 being nearly 800g or so, and the triple sbt-90.2 HK90 being 1.1kg.
3 volts 25 die
https://item.taobao.com/item.htm?spm=a1z10.3-c-s.w4002-22419669857.19.300e4bcalockx8&id=656579221712
No graphs. Just prices.
XHP35 XHP35.2 XHP35.3 SFS75 SFQ43 40瓦LED灯珠 XPL SST20 LED
https://item.taobao.com/item.htm?spm=a1z10.3-c-s.w4002-22419669857.15.300e4bcalockx8&id=657014582280
XHP50 XHP5.2 XHP50.3 SFQ55 SFQ60 SFN43 100瓦LED灯珠 ST40 LED
https://item.taobao.com/item.htm?spm=a1z10.3-c-s.w4002-22419669857.13.300e4bcalockx8&id=656954117685
>3V 30A
Yeah, this thing will not have a single ounce of efficiency lmao.
Emitters that can take high amps are usually quite efficient at lower currents. For example, the SFP55 above claims 5000 lumens at 10A which is over 150 lm/W efficiency.
They are inefficient of course on direct drive.
Thanks for sharing all the specs!
Interestingly some of the LED diagrams make reference to other LEDs that I don’t think exist yet:
Any ideas on this? Are they trying to say the SFH55 is like a next generation SBT90.2? Or is SBT90.3 a thing now?
Those are nonexistent emitters. They are just implying that the Chinese Leds are something like an upgraded SBT90.3 or XHP70.4. They write something like 超越替代 (can exceed or replace) XHP 70.4.
Unfortunately, some sellers like to do this type of false advertising while others don’t. All the diagrams are for the Chinese “S series” emitters.
Haha…bro, thanks for trying to explain it in a clear/concise manner.
You know, after years of buying from TB (since 2013, before that was Aliexpress from 2009 i think), i have more or less been accustomed to this so for the longest time, ie “I need to form my own opinions/conclusions” from these item descriptions. So much so that nowadays i already don’t question such things already and accepted it….it no longer matters already, if you can’t beat them, join them. :laughing: And you know, there are also varying degrees of such “false advertising”… some are worse than others, some are ok.
So much so that reading the TB review section is a must nowadays, and if there are no tech/detailed reviews with hard data preferably, buying the product still carries risks and you must be prepared to accept it if there are any shocks later on, hopefully just not big shocks. lol :laughing: It is what it is.
Actually and ultimately, i really don’t mind such false ad stuff, coz for the longest time i already know if it is good to be true then it probably is. I just filter all these out and look at the product by itself, what it probably can do. Esp coz my buying habits is usually more for my specific style of usage and for flashlights it’s more for fun hobby than anything else……esp so that i am pretty price sensitive, so such a model works well for me.
Then for most times, i’d also automatically discount them figures a little bit,
for eg when buying the JKK76 i already knew that is not ANSI 30 seconds (physics in both thermally and 3 battery cells electrically with high lumen and possibly very high input power
say no way). 33k? Technically that is possible at turn on first second which i am fine with coz there are folks here and on youtube doing that, but issue is that it is still possible for it to be lower, and it did end up a bit lower on my copies like 26-27k lumens at best, luckily not by a lot and maybe i’ll just attribute that to the emitter vs OTF lumens thingy which would be a 15% loss (I/we are all measuring OTF lumens).
Not a problem!
Just for completeness’ sake, i’ll just post some other chinese LEDs here as well, though limited info.
Bro fogofwar, do you have any info on these G type LEDs?
G50
Used in Haikelite HT50, 72mm head, has AR coated glass even, on a truly cheap budgetlight! I have a copy and as posted in other threads, it does hit the advertised numbers of 6k lm and 500k cd when measured and compared against other well known and well measured lights, like the BLF Q8/Sofirn Q8.
Got it at rmb 195 (usd 29) before the price increase. edit - just realised banggood is selling at usd 60+
I’d have gotten 2 of this and get > 10k lm + 1 mil cd if not for the fact that it isn’t particularly easy to aim 2 such tight hotspots together in real life. 
2pcs of JKK76 SFN 55.2 version is, of course, a totally different story
https://item.taobao.com/item.htm?spm=a1z09.2.0.0.7e8c2e8dXsTXGI&id=669346432284&\_u=b1u0hcibeed1
Haikelite HK90S with G90
1.1km distance from a 60mm head diameter reflector. 5000 lm.
I don’t have this one so no way of verifying the specs. If this were 4 * 18650 / 3 *21700 and bigger diameter 70mm head like the HT50, i’d consider as it’s still cheap (current TB prices and how much the sellers wanna profit based on demand)
Reviewers mentioned no green tint at lower levels.
等了20多天，终于到了。不到两张的价格，能买到这么牛*的做工和性能，确实*啊！看看跟进口90的对比，的确色温高，优点在低量不发绿，手感无敌，光强比艾美能特rt 35低，但光通大很多，确实爽
One fella mentioned the tint used in this model seems to be even better than the imported SBT 90.2
Believable or not, up to the individual. I think worst case scenario it should not be that bad.
买得过！光色比进口90好
Thanks for sharing, good read, the ones used in the HT50 is most probably is not the same bin/tint that dojzz got or something, or maybe they have made improvements recently.
edit - read farther down the thread, the ones other received seems to be much better.
Anyway, the ones used in the HT50, the CCT is high of course (well above 6000) but in all modes there is no hint of green. In fact way better than my other established brand names stuff, like my Jetbeam RRT-2 with its XM-L, which would kill tint /CRI purveyours.
I have used my HT50 as ceiling bounce illum, wierd i know….but it does have a pretty decent mass and size, so @ 1-2k levels it’s pretty efficient for longer term usage.
I paid nearly usd 100 for the Jetbeam RRT-2 XM-L around a decade ago! And the magnetic ring selector isn’t working that well now. :person_facepalming:
A pic would tell the story better. LHS is my Jetbeam RRT-2, RHS Haikelite HT50. Lowest mode in the HT50 (4 settings + 1 turbo), not sure how bright it is though, never measured on my meter. ps the RRT-2 is like 30-40cm closer to the wall than the HT50, in an effort to make the hotspots to be more similar in size. Actually there is sort of a moonlight mode on the HT50 (long press from off) but it’s just as white….coz for comparison’s sake there is no low low mode on the RRT-2 for beamshot on wall pics.
Yep the round ones, were referred to as the Yinding projector LED on this site. However, I think Yinding is just the reseller, and we don’t who the actual manufacturer is.
People have found it to produce an excellent beam shape - tint is hit or miss though. Overall, it is similar to a Luminus SFT40 or San’an SFS80 in terms of lumens and intensity.
Yeah…i managed to find the Yinding reseller site tho. Osram, Luminous, Seoul brands etc as well as chinese 国产/domestic leds.
So maybe the LED (s) really are G50, G90, as mentioned above. Yinding 5050 is like, BLF-speak. lol
Though i still can’t find the G50 and G90 LEDs in there.
https://cree1.taobao.com/search.htm?spm=2013.1.0.0.1aa8b48cs1DEKP&search=y&orderType=newOn_desc
ps edit - actually the chinese name 银锭 aka silver ingot already tells us so. Just that the English “Yinding” doesn’t tell us much. lol :money_mouth_face:
Is it similar to the SFT40 in terms of intensity? Wow….seems to be so from this testing. I’ve always thought that the SFT40 is just a bit lower in intensity but more lumens vs the Osrams.
Either that or my measurement of the Haikelite HT50 is a bit flawed. lol.