Anchor light won't stay snug

[coopercc]

I own a 2015 Sea Ray 21 SPX i/o. The anchor light I have works this way: Stick it in the slot, push the black plastic "thing" in and turn the black plastic "thing" a half turn until it is snug. Great, I do this, all is good. But then as I drive the boat, the black plastic "thing" comes loose with the movement of the boat. My wife ends up having to hold the Anchor light in place. This can't be normal. Seems like a very bad design. Anyone else have this issue? Am I just an idiot doing something wrong?

 

[CliffA]

can't answer your question but I do have a suggestion that may help....you might want to post this in the 'Sports Boat' forum....you will likely reach a lot bigger audience there.....

good luck...

cliff