2024-08-11
- Type: round die, domeless
- Bin: unknown
- Color group: unknown (6500 K)
- CRI: 70
For further information on the emitter, please refer to the detailed test that has already been carried out.
The LED tested here was purchased together with the previously tested 3000 K version November 2023 from Convoy on Aliexpress.
It was made available to me by TLF user @Palladin, many thanks for that!
Visually, there are no differences apart from the yellow-green colored luminous surface. The footprint is also identical. It is very likely that the same LED chip is used as in the 3000 K version. Judging by the pattern of the through-hole connections of the chip (called vias), a chip with a circular illuminated area from Sanan is maybe used, although there are some differences to the LED chip used in the new Luminus SFT-25R.
- Maximum reached at 9.2 A, at this point 2037 lm @ 3.84 V
- Power at maximum 35.4 W
- Efficiency at maximum 57.6 lm/W
Data for 25 °C Tsp (at 85 °C the luminance values are around 13 % lower).
The performance is good…
… if it weren’t for the destruction of the light surface at around 9 A. Similar damage has already occurred with the XHP50.3 HI. Presumably, this effect occurs also at lower current, although this also depends on the series dispersion. The fact that this effect did not occur with the 3000 K version could be due to the significantly lower radiation density in the silicone.
Otherwise, the W5050SQ3 in the cool white version would be very powerful and have a very high luminance.
The beam corresponds to that of the 3000 K version and is flawless.
The spectrum corresponds to that of a commercially available cool white LED with a low color rendering index. There are no surprises in this respect. There is little tint shift with increasing current.
- Ra: 70
- R9: -41
- CCT: 6622 K
- duv: 0.0062
In itself an LED with high performance, good beam and very high luminance. However, the silicone is already damaged before the maximum possible operating current, so that the maximum possible luminance cannot be fully utilized.
If this LED is operated up to around 7-8 A, it can be used without restriction for throwers.
Thank you for reading this test. 
