This LED Amber Single Stud Sidemarker Light is perfect for use on your Boat Trailer or Utility Trailer. It is a sealed light so it can be submerged. Be seen with the highly reflective lens and bright diodes. LED lights are a great replacement for standard incandescent bulb lights because they are brighter, last longer, and are less susceptible to shock damage. The mounting is simple as the mounting hardware is built into the back of the light. Hook the ground wire around the mounting bolt, connect the power wire to your running light wire and your ready to go. This light is manufactured by Optronics and they offer a Lifetime Warranty on the diodes.