Final answer:
The recommended lighting levels for open yards can vary depending on the specific use and activities taking place in the yard. However, a commonly recommended lighting level for general outdoor areas such as yards is around 10-20 lux for safety and visibility.
Step-by-step explanation:
The recommended lighting levels for open yards can vary depending on the specific use and activities taking place in the yard. However, a commonly recommended lighting level for general outdoor areas such as yards is around 10-20 lux for safety and visibility. Lux is a unit of illuminance that measures the amount of light falling on a surface.
For example, if you're in a yard and want to ensure it's well-lit for safety and activities, you may want to aim for a lighting level of around 10-20 lux. This can be achieved by installing outdoor lighting fixtures or using portable lights that provide sufficient brightness. Keep in mind that different activities may require different lighting levels, so it's important to assess the specific needs of the yard and adjust the lighting accordingly.