Reduce light pollution by using Dark Sky Lighting
for your outdoor use. Light pollution is caused when outdoor lighting isn't correctly protected. Minimize on energy use by placing some of dark sky lights that could be used for outdoor wall lights, outdoor post lights, outdoor hanging lights, and outdoor ceiling lights.
Hanging, Post, Wall, & Ceiling Dark Sky Lighting
Take into consideration that nocturnal animals can also be harmed by the light pollution in the evening time. Keep the light in your own space so it doesn't trespass onto your neighbor's homes, such yards and windows. All of these outdoor lights shown below are either dark sky compliant or you have the option to choose from if that is the feature you are looking for.