Botch, and the manufacturer sees it the same way
The lamp lights up. That's the good thing. That's why it gets two stars.
Now for one of the problems The upper sealed part has three nipples that snap into three recesses in the lower bracket. Like a bayonet lock. Or a jam jar. The three holding points are evenly spaced. So you can assemble the lamp correctly, rotated 120 or rotated 240. It all holds without any problems and, logically, lights up the same. I assembled the lamp rotated because there is no marking in the area where the upper and lower parts come together. Everything works wonderfully, except that the lamp never comes apart again. I had to break the lower bracket to get the upper lamp off. There is no other way to disassemble the lamp. Hella Marine should have simply made all three nipples the same or put a marking on them or arranged the nipples at different distances, but they missed all of that.
Finally, I wrote to both SVB and the manufacturer. I just need the bottom piece of plastic replaced. The reaction is: There are no spare parts. The manufacturer obviously considers its products to be so inferior that it is not worth repairing.
By the way, there is no strain relief in the pot for the incoming cable from the mast, like every DIY store nightstand light has. The construction is simply rubbish, and the manufacturer knows it.