I have used Semi-truck lights in trailer application with great success. I looked to see if I could get a website for you but did not find one. However, this link is good for the wiring. Go to the bottom of the page and use the multi-function bulb set for the four wire flat plug (probably what you have).
http://www.horsetrailerworld.com/home/wiring.asp Now about the bulbs: If you will notice the round tail lights in cement mixer trucks, semi-truck and big rigs. They are 100% sealed and waterproof. I have bought them in regular and LED from NAPA auto parts, however I did not see them on their website. The installation will require: (2) sealed bulbs / lenses in LED or regular (big cost difference), (2) metal brackets (they have holes to be bolted on) (2) rubber gaskets - they mount the lenses into the brackets and lastly (2) wire pigtails. You will find the wire pigtails are color coded properly but difficult to snap or click on the lenses (and do not accidentally fall off). You will see the pigtails are covered in a grease. Leave the grease there and snap them together and you will have a watertight / waterproof connection. When I drove a mixer truck, we cleaned our equipment with high pressure water and acid to clean off the spilled concrete. I've never seen a failure because of exposure damage. Hope you have a NAPA auto parts close by. They are most helpful even if you just go in to ask them about the components. You'll spend about $45.00 for the set of two and if you do not crunch them they will last years. LED is about $40.00 more Hope this helps Bill www.MSOGPhotoSite.com _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
