The LED lamp is the same size as a small E14er bulb.
She lights still nice and warm white, so I can hardly differ in color from its predecessor.
From the brightness it can also hold loosely with the previous 25W light heating.
A small downside there yet: the light angle is approximately 180Grad considerably more limited than in the bulb
Nevertheless, overall highly recommended as a replacement.
I can say nothing about the burn time after about 40 hours of operation.