Use the recessed lighting calculator on this page to calculate the placement and spacing for general lighting in a room. Just select the layout, enter the room’s dimensions, and hit calculate. You can also use the calculator to determine the placement for recessed task lighting above a surface by using its dimensions rather than the entire room.
Light levels are NOT calculated or suggested. This calculator gives payback time, and both the annual and life-time savings figures for energy, maintenance, and CO 2 production. It calculates Lighting Power Density from area of at least 50 square feet per fixture, and provides the maximum fixtures allowed from a target LPD. Determine what is power consumption of your street light. The first step in designing a solar street light system is to find out the total power and energy consumption of LED light and other parts that will need to be supplied by solar power, such as WiFi, Camera etc. Need to be supplied by the solar PV system.
Note: You can actually use any format with the calculator – inches, centimetres, or feet. I recommend using inches or centimetres rather than feet because it is more precise.
Obviously this calculator does not cover all of the possible room shapes, layouts, or quantity of recessed lights a room may need. However, it should give you an idea of how to apply the formula for the placement and spacing of recessed lighting.
If you’re unsure where to begin, you can also use our general lighting calculator to help you determine how many recessed lights the room needs.