There can be many reasons why your recently purchased LED light bar does not light up. When the product arrives, make sure you check all the components of the unit. If there is no defect in the product, then perhaps the wires are not connected properly. Poor wire connectivity occurs when your wires are overlapped and loose. If the wire of your LED lights is connected properly and you have mounted the lights as instructed, then there could be an issue in the voltage. If you still can’t get the LED lights to illuminate the road, then you will need to contact the manufacturer. You could also take a look at the manual to see if there is any special instruction you have missed.