MICTUNING MIC-B1002 LED Light Bar Wiring Harness, Fuse 40A Relay On-of is a great product for anyone who is looking for an easy to install wiring harness for their LED light bar. This product comes with a waterproof red on/off toggle switch and is made of flexible strand copper wire, making it able to handle up to 180 watts of power. It is also universal fit for any 7", 10", 12", 20", 30", 40" light bars that is within 180 watts. This product is great for construction workers, off-roaders, or anyone who needs a reliable and sturdy wiring harness for their LED light bar.