Using the Access Lighting Neptune Single Light Outdoor Wall - Mount is a breeze. First, make sure you turn off the power before installation. You can easily mount it on the wall following the included instructions. For lighting, you'll need to buy an A - 19 lamp with an E - 26 base, as it's not included. When it comes to dimming, just use a standard dimmer like the recommended TRIAC dimmer to adjust the light as you like. As for maintenance, since it has a marine - grade finish, it can withstand outdoor conditions well. But it's still a good idea to clean it regularly. Use a soft, damp cloth to wipe the aluminum fixture and glass shade. Avoid using abrasive cleaners that could damage the finish. And always keep an eye on the lamp. If it starts to flicker or goes out, replace it promptly to keep your outdoor area well - lit.