Mount the light in a little plastic project box and bolt or rivet both to the hull ... the box around the lamp will protect it.
We will split a piece of PVC pipe, warm and soften it to shape and use it as a light shield at times. Looks good and works well, but you can also buy them.
Many people cannot see anything with red lights.
Amber lights have been almost 100% happily accepted by every customer. I say “almost” because sometimes a customer will argue before the fact, thinking another color is better.
After doing dozens of these installs, I now ask them to trust me, BUT I promise to change to any color they want for free if they don’t like the amber.
So far, not a single person has asked to change Amber out after using them, but I have changed out red, blue and green. Sometimes, I will leave the first color and add a switch for the second color. That way, they can have their “cool” show lights and functional work lighting. On occasion, we do both amber and white on the initial install.
We also install multi-color LEDs that customers supply. They are pretty cool, but some do not seem to work properly after awhile. Often the remote control is the weak link. The lights are waterproof with remote control often is not. The lights are waterproof, but the remote control often is not. I don't like rope lights much for the same reason. This is a place where cost matters. If you get the expensive ones with a lifetime warranty, they do well.