General description Bright LEDs with high response efficiency, these waterproof LED trailer truck rear tail lights are designed for durability and visibility. They are suitable for various vehicles including trucks, chassis, trailers, dump trucks, boats, buses, and caravans. Technical specifications Voltage: 12-24V LED Quantity: 28 pieces each Waterproof Rating: IP67 Functions: Driving, Stop, Turn Signal, Reverse Size: 13.5x3.5cm / 5.31x1.38inch Material: ABS + PC Compatibility and accessories Applicable to trucks, chassis, trailers, dump trucks, boats, buses, and caravans Package Contents: 4 x Round LED Truck Tail Lights Usage Black - Negative Yellow 1 - Turn Signal (Steady Yellow Light) Yellow 2 - Flowing Turn Signal (Steady Yellow Light) Blue - Tail Light Red - Brake Light White - Steady Reverse Light Other information Note: Light shooting and different displays may cause the color of the item in the picture to differ slightly from the real thing. The measurement allowed error is