Then I ordered the 10 Pack and was surprised negative.
The very first LED (same name, slightly different color tint in the Box) provided a total yellow, almost dirty light. Therefore, only 1 star from me for the 10-pack. Fortunately hassle returns by Amazon (has nothing to do with the Bertung the LED).
I ordered another three (again) individual LED lamps and how this miracle LED handed back the best light.
Should not I just have had bad luck at the 10-delivery, I would say the much cheaper price comes from a type B Quality of packs of 10. I would be interested if the other buyers can also confirm?