Hopkins Towing Solutions Submersible Low Profile Trailer Light Kit C6285 Red is designed to meet DOT requirements for trailers over and under 80 wide. This kit is not only ideal for boat trailers but for any utility camping snowmobile and motorcycle trailers too. These lights use the Bell Jar Principle preventing water from coming in contact with bulb or socket and therefore allowing you to load and unload directly into water. Additionally the lenses are sonically sealed which eliminates the need for gaskets that can dry rot and leak. The stop tail turn lights feature universal back & side mount options and are individually replaceable with model numbers 87B and 97B (bulb replacements are #194 and #1157). Kit includes 2 stop tail turn lights a 20 ft. 4prong-wire harness corrosion resistant license plate bracket mounting hardware and trilingual instructions- everything needed for easy installation. Additional side marker lights and reflectors are necessary to fulfill legal requirements on many trailers depending upon their dimensions.