Using these exterior wall lights is easy. First, have a licensed electrician install them following the instructions in the box. They work well with a 2 - way switch and can be paired with a PIR sensor. Just connect them to a 100 - 240V AC 50/60Hz power source. Keep in mind they're not for dimming. The lights can handle temperatures from - 20 to 50°C, so they're suitable for various outdoor conditions. For maintenance, regularly check the aluminium housing and back plate for any signs of damage. Clean the UV - resistant PC diffuser gently with a soft cloth. To avoid warranty problems, always ensure the IP65 rating matches your usage environment.