Light pollution can be reduced by using specific types of light fixtures that are designed to minimize the amount of light emitted into the sky or directed towards unwanted areas. Here are some types of light fixtures that can help cut down on light pollution:
Fully shielded fixtures: These fixtures have a shield that blocks light from being emitted above the horizontal plane. By preventing light from being directed upwards, they minimize skyglow and reduce light pollution.
Dark-sky compliant fixtures: Dark-sky compliant fixtures are designed to emit light only where it is needed, minimizing wasteful upward light dispersion. They often incorporate shielding or directional elements to control the light distribution and reduce light spillage.
Low-glare fixtures: Light fixtures with low-glare properties are designed to minimize the amount of direct or reflected glare produced. Glare can cause discomfort and reduce visibility, contributing to light pollution. Using fixtures with proper shielding, diffusing elements, or glare-reducing designs can help mitigate this issue.
Full cutoff fixtures: Full cutoff fixtures are designed to direct light downward with minimal to no light emitted above the horizontal plane. They provide excellent control over light distribution and help prevent light from being dispersed into the sky or neighboring properties.
LED fixtures with proper color temperature: Light-emitting diode (LED) fixtures that have a warm white or neutral color temperature (2700K to 3000K) are recommended to minimize the impact of blue-rich light. Blue light has been found to contribute more to skyglow and disrupt natural ecosystems. Choosing LED fixtures with the appropriate color temperature can help reduce light pollution.
Timers and motion sensors: Incorporating timers or motion sensors into light fixtures can ensure that outdoor lighting is only active when necessary. This helps minimize unnecessary light emissions during nighttime hours and reduces light pollution.
By employing these types of light fixtures and implementing responsible lighting practices, it is possible to significantly reduce light pollution and create a more environmentally friendly and visually appealing nighttime environment.