At the Frankenmuth car show I road back with Dawn in Her Amphicar with 60's headlights/ and poor wippers in a heavy rain storm. . Even the road lines were not visable! I had to tell her how far she was from the ditch, opps thats the gravel.You never Know when you may get stuck in a bad situation so make sure you have as good as you can, wippers, and Halagen Headlights.These are avalable at all car stores, 7 inch round seal beams.
The lights that have a replacement bulb that clip in from the back are not really good for Amphicars as Our lights are completly submerged in water many times and they are not 100% waterproof from the backside.
I am installing a set of these on my Fibreglass Amphicar, (which is now body wise 100%together) but I am going to seal it with silicone. The ones I have even have a parking light built into them.