The POWER1 LED Submersible Combination Trailer Light Kit is designed to conform to applicable US FMVSS108 and Canadian CMVSS safety standards for all vehicles and trailers over or under 80" wide. The trailer light kit is a great LED alternative to incandescent lights - the powerful series utilizes special lens optics to simulate the look of traditional incandescent lights while delivering the long life and maintenance free reliability of LED lights. The life of an LED trailer light far exceeds traditional incandescent trailer lights. The low amp draw and durability of an LED provides a maintenance-free light and the quicker illumination keeps your safer while on the road. Stud mounts on industry standard 2" centers. LED trailer light kit includes 2 stop/tail/turn lights， a 20 ft. 4-way wire harness， corrosion resistant license plate bracket， mounting hardware and trilingual instructions- everything needed for easy installation.FeaturesSubmersible - Housing and lens are sonically sealedElectronics are protected by a plastic casing and sealed in epoxy to resist corrosion and moistureWorks with 12 V systemsLong lasting - 6x the life of incandescent technologyIncludes 2 stop/tail/turn lights， a 20 ft. 4-way wire harness， corrosion resistant license plate bracket， mounting hardware and trilingual instructions