The unusual items were:
- Was the bulb after it has not hermetically sealed so the water condensed inside off the lamp
- The base of the lamp, which is probably made of ceramic, quickly becomes very hot and makes it impossible for the lamp after a few minutes of running down to touch
- It seems to be dust in the air, because it is not hermetically sealed.
As a conclusion it can be said that the lamp can be quite good as a replacement if a do not disturb the above points.
But either way, you can well use in concealed lamps Also, where it is not directly visible.
How does the points that I have mentioned, I can not say yet affect the service life.
The search for a replacement for incandescent lamps in chandeliers is so on ....