Trailer Light

Trailer lights are engineered to ensure a trailer is visible, communicative, and compliant on public roads, integrating multiple lighting functions—tail lights, stop lights, turn signals, side markers, clearance lamps, license plate illumination, and reflectors—into a single unit or modular kit. Designs vary according to trailer type and dimensions: for example, trailers under 80 inches wide and 30 feet long typically require rear stop, tail, and turn lights plus reflectors and a license plate lamp, while wider or heavier trailers must also include clearance lights and conspicuity strips. Critical technical considerations include proper grounding (white wire to chassis), system voltage (DC), and connector type (4-, 5-, 6-, or 7-way) to ensure synchronised operation with the tow vehicle.