Fully submersible and functional for several types of environments and trailer uses. This LED light performs the runnig, braking, and turning functiosn for your trailer. The LEDs are rated for 100,000 hours and are the brightest lights out there. The LEDs cluster is sealed in epoxy. LEDs also use 1/10th of the power of a conventional light bulb. LED allso for faster lighting response, bright luminosity, mounts with the industry standard 2 in on center and includes mounting hardware. This light grounds through the mounting studs.