Features: 3 in 1 Tail & Brake Light,Sequential Flowing Turn Signal Light Applications: for heavy trucks, semi trailers, cargo trailers, work vehicles and a wide or narrow overland vehicle. Specification: Condition: 100% New Applications:Truck Trailer RV Fit: Universal For 12-24V Vehicles Heavy trucks. Position:Stop turn tail brake Light Voltage:12-24V Light Color:Red+Yellow Wire: 4lines Material: ABS Color: As shown Wire Connection: Black Wire: Negative Yellow Wire: Turn light (Flowing) All bright Red Wire: DRL Light (With startup effect)100% brightness Blue Wire: Brake Light(With startup flashing effect)100% brightness Note: The brightness of the running lights and brake lights is the same. Please watch the video for specific effects. Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Wire harness color is random, No specification accepted Package Contents: 2 x Brake Tail Turn Lights Only the above package content, other products are not included. Note: Light reflection 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.