LED's for marker lights

Can't pull up the links, however, MOST important part is to make sure you sealed them up completely with generous amounts of caulk....especially the hole in the middle where the wires come through the roof into the light. This is the entry point for most water imho. As mentioned above, I used a 1.5" x 2" piece of Eternalbond tape to cover the 1" drill hole from manufacturer and ran wires through a very small slit (even caulked that after wiring). Filled the pass thru hole in the light mount as well. Then, good bead of caulk around the exterior of the light fixtures. If you can, inspect your work several times a year and absolutely remove upper bunk mattress and look for any moisture.....this is the true test. Driving in a good rain can and will find even the smallest gap. Good luck!