This Eber tail light is not a perfect copy of the original Eber tail light, it has following weak points:

- the base plate is too flat; it doesn't follow the contour of the rear fender

- the base plate lacks the 2 upper holes to fasten it to the rear fender

- there's a gap between the housing and the aluminum retaining ring for the glass

The socket takes a light bulb with locking pins at the same height.

For comparison, below an Eber tail light  with the correct base plate (left) and one with wrong base plate (right) 

The Eber tail light with the correct base plate is the model with the brake light (PN 8054108)