Using your Louis Poulsen Skot outdoor wall light is easy. First, make sure it's properly hardwired by a professional electrician as it comes pre - set for hardwiring. It's designed to be mounted on a finished surface over a recessed 4 - inch octagonal junction box. For the best light effect, you can choose between symmetric and asymmetric light distribution. The asymmetric option is great for wall - mounting. When it comes to the bulb, it uses a 15W LED 3000K, 120V bulb, which you don't need to replace often. This light is made for outdoor use, even in wet locations, but it's a good idea to check it regularly for any signs of damage. To clean it, use a soft, dry cloth to wipe the opal diffuser and the die - cast aluminum base and cross - guard. If you're not satisfied with the product, you can return it within 30 days.