Using this rear fog light is straightforward. When you step on the brake, the F1 function might activate (you can turn it off if you want). In the dark, it'll really help others notice you. The parking light is always there to give you extra light in foggy situations, and the reverse light makes it easier for you to see and for others to be aware when you're backing up. For installation, first lay out all the hardware and the harness. Then, install the lamp and find a good route for the wiring so that water won't get into your vehicle. Plug in the harness and test all the functions. As for maintenance, just keep it clean. You can use a mild cleaner to wipe it down from time to time. If you notice any issues with the blinking or lighting, refer to the included instructions or contact customer service. Remember, the F1 blinking can be turned on or off according to your preference and the situation.