Beautifully compact, but low light yield

The 12x3,5cm large Primus lantern mini is really a dwarf and in the Lantern range of primus the smallest.
So ideally, who needs a decent light source for small spaces such as tents, etc. One should not expect a miracle light here definitely. The light spread rather a difuses light (depending on room size).

Because the scattering angle of light almost horizontally protruding from the circular lamp, the direct light is not reflected downward to illuminate for example the tent floor. I had at least hoped, that the light is reflected directly below the lamp as long as you hang them.

At the top of a metal strap with notch is for hanging. The bracket can be 90 degrees to the side flaps. This also results in the option to put the lamp on the head and thus to produce a different lighting situation.

Three AAA batteries are inserted through the screwed bottom in a magazine.
Is the input and Ausschalteknopf on the side. However, there is only a light intensity. On or off.