Could you explain a bit more? I picture can lights in a ceiling, but a patio doesn't usually have a ceiling, so I am confused. Maybe a photo?

To determine how many can lights are appropriate for a patio that is 12 feet wide and 10 feet 3 inches long, you need to consider the size of the can lights and the amount of light you want to achieve. Assuming you want to install 4-inch diameter can lights, a general rule of thumb is to space them 4 to 6 feet apart. Based on this, you can calculate the number of can lights needed for the patio by dividing the length and width of the patio by the spacing distance, as follows: Width: 12 feet ÷ 4 feet spacing = 3 can lights Length: 10 feet 3 inches ÷ 4 feet spacing = 2.5 can lights (round up to 3) Therefore, a total of 3 can lights along the width and 3 can lights along the length would be appropriate for this patio.

1. Illumination (lux) levels
2. Recessed Lighting Calculator (number of lights required)*
3. Recessed Light Calculator (placement and spacing)

*Beam angle: obtain from fixture or bulb specification. For example, these Euri Lighting EP20-5.5W5020cec-2 PAR20 bulbs have a beam angle of 40 degrees.

Dark Sky Lighting Basics.

lighting should:

• Only be on when needed
• Only light the area that needs it
• Be no brighter than necessary
• Minimize blue light emissions
• Eliminate upward-directed light