Hey there, trailering folks! If you're tired of piecing together lights for your trailer, this kit has got you covered - it's the whole package! You get 2 of those low-profile rectangle LED tail lights (they do everything - running lights, brake lights, turn signals, you name it), PLUS 8 mini oval side marker lights (6 amber, 2 red), a 15-inch 11-LED third brake light bar for extra visibility, a full 25-foot wiring harness, a license plate bracket, some reflective stickers, and all the mounting hardware. Seriously, it's all here. These rectangle lights are totally submersible - no screws on the surface means water can't get in. Perfect for boat trailers that get dunked regularly, or just for dealing with nasty weather. They're sealed up tight so the circuit board stays dry. Works with pretty much any 12V vehicle - utility trailers, campers, dump trucks, snowmobile trailers, tractors... if it's about 80 inches wide (or close), this'll likely fit. Wiring it up? Check the detailed image we've got for some helpful tips. Got questions? Shoot us an email - we promise to get back to you within 24 hours and help you get rolling safely.