Designed   from the ground up, the multivolt Model 37 trailer lamp has been engineered   for use on boat trailers where regular submersion is common. The lamps are   protected from water ingress with a two stage sealing system that   incorporates ultrasonic welding and a two-part epoxy glue. This allows the   lamps to comply with the stringent IP68 standard. Each lamp is fitted with a   waterproof connector and joins effortlessly to the main harness which is also   compliant to the IP68 standard. All hardware is made from 316    stainless steel and suitable for marine environments. Model 37LED 12/24V9m LeadNo Plug