In this respect, I am personally very satisfied with the result, although relatively short use a long-term test with respect. Shelf life is still pending. Especially conventional G9 bulbs it has (perhaps also due to higher humidity in the basement / rec room) at least disassembled me very regularly, so far, I hope just at this point the advertised longevity.
Much more important - the light is great. Significantly clearer, brighter and more luminous than the dim yellow of the predecessor to flicker and silently, without buzz, beep, whir and buzzing. More generally, the concept has system-related advantages and disadvantages. From the high price aside, these LEDs bulkier and heavier, the plastic version is much longer. This inevitably leads to the fact that the G9 bulbs can be seen clearly with small lampshades. Conversely, the finger-fire danger has passed, because even after lengthy use the matter to screen and lamp gets only slightly warm.
After delivery currently operate every five protagonists as desired.
Conclusion: Very good. Until the time to prove the opposite.
Addendum: This product is provided me for testing purposes by the manufacturer. This fact does not affect my rating, which takes an unbiased and objective.