I ordered 4 pieces and they came in a very high quality and safe packaging. The printed package was 3W and it was a sticker on it with the value of 2W. On the lamp itself 3W is in turn printed.
This lamp was one of the few purely fits in my lamp, because the diameters are too large for most G9 lamps. The diameter is only slightly larger than that of conventional halogen lamps. The length is about 2-3 cm long, which has the disadvantage brings with my light that the discs are not uniformly illuminated. But this I can not blame the LED lamp, because it always comes to the design of the luminaire, in individual cases.
For brightness, I had only the expectation that they will be darker than the halogen lamps. However, they are much lighter. For me, 25W halogen lamps were installed before and these were then total 100W. Now at 12W I have significantly more light output. The color should be warm white, but it is still a very cool light. For me it does not bother, because a color wheel in front is.
As the biggest gripe I have to take the Sockelmaß. None of the lamps fitted straight into the socket. The base was on all lamps a few 1/10 mm too wide and did not go inside. With a Proxxon and a diamond pin I have the faces and edges trimmed a bit, and then they fit well. Previously I have also tried in another light and there was exactly the same. Whoever does not have the necessary tools or the not trust, because then, of course, the warranty is gone, the only remains return. For me, it was indeed 10 minutes of work, but finally matching halogen lamp replacement in the correct size.
At the light, where they are now used, I have no dimmer. But at another I have one and have it tested before it. There was only half and full brightness and you could not deal with this. When switched off, the lamp is shone still with half brightness. So not suitable dimmer.
I can not say anything yet, they are only two days in there on the shelf. But I will report here if you prematurely quit their service.
In conclusion: A high-quality lamp is very bright, but has pass problems on the base. If the passport problems were not at the base, there was 5 stars from me. So I can but only awarded 3 stars.