This Trailer Tail Light Bar is perfect for most towing vehicles equipped with 10V to 30V DC power supply, such as RV, campers, trailers, trucks, UTEs, UTVs, engineering vehicles, loader, boats, flatbed, caravans, Excavator,Reaping machine and so on,can improve safety give your car a ;There is Iron bracket on the backseat and the iron net in front of the lampshade, which is stronger than others such as just pure plastic and protect the whole LED light bar effectively and prolong its service life;Trailer tail light bar adopts 40 pcs advanced LED with high brightness, long lasting, bright LED technology. Over 100% brighter than Stock units. Life span of over 50,000 hours. Our replacement trailer tail lights may very well outlast your truck!WATERPROOF & DURABLE: IP67 waterproof trailer tail light, capable to withstand the invasion and corrosion of sand, dust, dirt, water, snow and other impact of inclement weather, provides long-term durability for your vehicles.5-WIRE connection system for Negative, Turn Signal, Brake Light, Running Light and Reverse Light: Black Wire - Negative; Red Wire - Brake Light; Green Wire - Tail\/Running Light; Yellow Wire - Turn Signal Light; White Wire - Reverse Light; Two holes need to be drilled. Just screw off the nuts, and match the two studs in the holes drilled and screws the nuts on, that is okColour: black+red+white+yellowMaterial: plastic+ironPackage Contents:2 x truck taillightOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.