Upgraded Version Wiring Harness: It is different from the traditional wiring harness, this light bar wiring harness adds the change light beam/light mode function. You can switch the light mode through the button. This is a function that other traditional wiring harness doesn't have. Automotive 12V 40A Relay: Light bar wiring harness comes with 2 12V 40A automotive relays, which dually and efficiently protects the circuit and lighting system. Large Load Capacity: Built-in blade fuse against over current and short circuit which regulate the power to be consistent and stable to the safety of your vehicle's electrical systems. Long & Flexible Wire: The wire is long enough to mount led light anywhere you need it in the car.<br><br>Item Name: Wiring Harness Kit Max Wattage: 480W Operating Voltage: 9-16V Wire Gauge: 14 AWG Life Span: 6000H Function: Change Light Mode Different batches may have different appearance label printing, which not affect the use Colour:Black Material:ABS<br><br>Package Contents: 1 x LED Light Bar Wiring Harness Kit<br><br>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.