1、This LED wiring harness comes with a 3‑channel powerful switch, which can switch between 3 modes of light, once turn off then on again to change the light mode: lasting lighting+flashing+flashing left&right, just only with 2 leads relay, 40A fuse, support maximum 480W. 2、It can intelligently sense after the car starts the motor, and then the car lights can work; during drive, it can actually survive the voltage and the car light temperature, effectively protect car light on work safely, lasting the life of car light, avoid the lose of battery; delay turn off light function: when the voltage is lower than the security voltage, it can delay the LED lamps off, then protect us with a safe drive. 3、The built‑in blade fuse prevents over‑current and short‑circuit. 14AWG harness sheathed by premium PVC, prevent voltage spikes and heat. The 40A relay is made of high‑quality rugged shell, we can handle it with operation at DC 12V, our led motorcycle wiring harness can effectively protecting the circuit current. 4、Applicable to all lamps, soft twisted copper wire maximum 480W heavy load capacity, compatible with LED work lights, driving lights, fog lights and other auxiliary lights. It is widely applicable to almost all 12V battery vehicles, such as SUV, ATV, UTV, automobiles, motorcycles, ships, yachts and trailers. 5、Equipped with high‑quality waterproof switch (with adhesive on the back), sealed with a rubber ring, dust‑proof, moisture‑proof and waterproof. The operating life is up to 6000 hours. The 13ft wire is flexible enough to be installed wherever you want. Non‑destructive installation, plug and play, just plug in the positive and negative poles of the battery, ensure that the original car power cord is not damaged.