Commercial Lighting Lumens Per Square Foot

5 10 lumens per square foot.

Commercial lighting lumens per square foot.

To figure out the lumens needed based on this figure you would take the total lumens of the lamp you are considering using and divide it by the total square foot. More accurate layouts can be done with the indoor design tool link available on the web page for the chosen fixture or by using a commercial lighting layout program. When lighting a room you light it by suggested lumens per square foot. Using the list you ll see that an office would need an average of 40 foot candles or 40 lumens per square foot.

However if you can t make calculations or quickly need to know how many lumens are needed per square foot for a garage or workshop you can try the lumens quick guide below for an average estimate. They are adequate for a first pass estimate. 7 000 to 8 000 lumens. 70 80 lumens per square foot.

2409 lumens or 18 watts. 30 40 lumens per square foot. The necessary light brightness differs according to the room application. So using the figure above as an example you would be lighting for 120 feet based on 12x10 room.

70 80 lumens per square foot. 70 80 lumens per square foot. This lumen calculation formula is using predefined standard lux levels required for different room types. 7 000 to 8 000 lumens.

10 20 lumens per square foot. Its special areas may need additional task lighting. Illuminance is measured in foot candles fc or lux. 1 fc is the amount of light that hits a 1 square foot surface when 1 lumen is shined from 1 foot away this equates to 1 lumen per square foot.

However it depends on your projected activities and tasks. 10 20 lumens per square foot. 8 000 to 10 000 lumens. The recommended lumens per square foot range from 70 to 100 lm.

All numbers refer to initial lumens and footcandles only.