LED test / review - 36-chip 9090 LED very similar to FFL909A (9 V, 4000 K 90 CRI rosy) - over 10000 Lumen with rosy Tint!

LED test / review EN


Unknown 9090 LED, 36 chips (9 V, 4000 K 90 CRI rosy)


2024-11-30


  • Type: multi-die, 36 chips
  • Bin: —
  • Color group: — (3500 - 4000 K)
  • CRI: 90
  • Rated voltage: 9-9.6 V
  • Max. Forward current: 5,000 to 8,000 mA
  • Max. Peak current: — mA
  • Viewing angle: — °
  • Thermal resistance: — K/W
  • Max. Temperature Tj: max. —°C

The LED tested here was purchased from the retailer “Pumin Store” on Aliexpress in mid-November 2024. The LED was delivered in a small bag with a sticker with the most important technical data and a small tube of thermal paste. The LED is mounted on a CU-DTP board right from the factory.

There is no data sheet, nor is the actual manufacturer of this LED known.

A very clear similarity to the LEDs from Fireflylite is immediately apparent. Although the LED tested here is larger, there are many more LED chips and the footprint is different (external dimensions 9.00 x 9.00 mm), there are virtually no other differences. It is very likely that this LED tested here is the same as the FFL909A which appeared only some days ago.
It is therefore also very likely that the LED shown here comes from the same ODM as for the Fireflylite LEDs. (“Hxsled” was mentioned as a possible manufacturer in this context).

As with the Fireflylite LEDs, the design is kept very simple - the chips sitting on a dark gray substrate and are covered by an orange phosphor layer. The surface of the LED is very smooth and any dirt can be removed very easily. In general, the LED is mechanically very robust.

The chips take up a large part of the surface. As a result, the illuminated area is huge, similar to the Haotai HT96 tested earlier. As with the latter, it is noticeable that not all segments shine equally brightly at low current - a typical problem for multi-die LEDs, which is why many manufacturers specify a certain minimum current in their data sheets.

A disadvantage is the strong illumination of the surrounding surfaces, which massively reduces the luminance and possibly impairs the light quality due to color distortions in the beam. It is therefore not possible to specify the exact luminous area in mm², but I averaged 71 mm².






  • at 8,000 mA (official maximum current): 6035 lm @ 8.84 V
  • Power at official maximum: 70.8 W
  • Efficiency at 8,000 mA: 85.3 lm/W
  • Maximum reached at 20 A, at this point 10319 lm @ 9.58 V
  • Power at maximum 191.6 W
  • Efficiency at maximum 53.9 lm/W




Data for 25 °C Tsp (at 85 °C the luminance values are around 13 % lower).


Due to a lack of official information and an unknown manufacturer as well as the large 9090 footprint, 8000 mA is used here as the official maximum current. It should also be noted that the voltage class of the LED tested here is around 9 V - this is very unusual and must be taken into account when evaluating the diagrams and measurement results. This is due to the internal wiring of the chips in 3S-12P config.

To summarize: this LED is extremely powerful - especially considering the tint. It is the first tested LED with high color rendering AND a luminous flux of over 10,000 lumens. At the same time, it achieves an output of almost 200 W!

Although it is slightly less efficient than the XHP70.3 HI in 4000 K and 70 CRI, thanks to the chips and the large footprint of the XHP70.3 it ultimately pulls away mercilessly. In terms of its performance characteristic curve, it corresponds virtually 1:1 to the SFH55 in 6500 K.

The luminance is low. Due to the large LES, this 9090 LED is only suitable for flooder. Throw is not to be expected, even in a larger reflector.



The beam is perfect. There are no color distortions. A drilled-out S2+ OP reflector was used in the image. Any rings come from the camera and are not visible in the beam.

The tint is reproduced very accurately here (on a calibrated OLED screen). In this respect, the unknown LED tested here is in the good tradition of the earlier Fireflylite LEDs with their really rosy tint.



The tint is typical Fireflylite. A rosy neutral white awaits the user. With an Ra of 90 and a duv of -0.0155 (!) at 150 mA (around 1 W), this LED corresponds almost exactly to the tint of an FFL505A in 3500 K, which once delighted many enthusiasts with its rosy tint. Only the color temperature of the FFL505A is lower.

Due to the high proportion of red, the color rendering is somewhat lower than with other LEDs. This is particularly noticeable in the spectrum. In general, the FFL505A 3500 K and the LED tested here are very similar in the spectrum.


  • Ra: 90
  • R9: 54
  • CCT: 4299 K
  • duv: -0.0155

The first LED with 90 CRI and over 10,000 lumens. With a perfect beam, a very rosy tint and high efficiency, it would be ideal for torches…

… if it weren’t for the unusual voltage class of 9 V. There are hardly any drivers for this type of voltage. It might be possible to use 12 V drivers, but these are generally not very powerful and it is not certain to what extent they will perform in long-term use. Another disadvantage is that neither the manufacturer nor the data sheet are known, which makes it even more difficult to use them in flashlights.

It therefore remains to be seen whether this LED, which is very similar to the Fireflylite LEDs, will come in a different voltage configuration so that it can be operated with extremely high currents and therefore impressive performance.


Thank you for reading this test. :slight_smile:

Greetings, Dominik


v1.0.2
17 Thanks

I always enjoy reading your conclusions where comparisons are made and what makes a LED very different, or special, is noted. It’s helpful for non-technical amateurs like me to have parameters kept in perspective. How interesting and keep up the good work.

This LED is from a fab called Hopthink (深圳市弘欣顺光电有限公司 in Chinese) And it uses 36 of 45mil size chips. This fab can produce large LEDs with high CRI which is pretty rare and Some people did order custom high-CRI LEDs from them.
Here is the link of this LED. The official current is 11000mA and rated power is 100W.

Also, you might notice the chip seems glowing inconsistent when driving with lower current. That’s because this LED uses 45mil chips and this type of chip have worse consistency than 43mil chips in my LED(DFEx-SuperLED+ Series). And the process capabilities of this fab is much worse than the fab of my LED so that’s why the gap between the dies is huge(typical 100-120microns and not configurable).

9 Thanks

How to interpret the maximum amperage at which plots terminate? Is is selected by for example the plot reaching plateau or there is some other meaning involved?

What do you mean?

Do you have something like a order code / model no. and a datasheet? Or is there no datasheet because this was not a requirement after ordering this LED?

Interesting btw how the specs differ from these at the Aliexpress seller. The CCT does not match (mine got almost 4300 K) and the CRI is everything but 95.

Oh, why for example some LEDs have different max voltage amperage than others. Is that the voltage when the test was stopped and why at this voltage amperage - i.e. not to damage the LED or at some percent of the max voltage specified in the specs?

I always stop the tests once the maximum possible luminous flux has been reached. I only carry out crash tests (to destroy the LED) in absolutely exceptional cases.

The fact that LEDs have different voltages is due, among other things, to the type of chip, the connection of the chip (bonding wires have higher resistances than flip chips), the number of LED chips, temperature and certainly a few more factors.

1 Thank