Today i will explain the third method for lighting design which is watt per square feet method as follows.
Lighting per square foot commercial.
In these spaces you ll want to look for shop lights wraparound lights led troffers and high bay lights that have higher output.
Result may defer according to spacing layout of led lights and position from wall.
Watt per square feet method as per ashrae ansi iesna 90 1 we have two cases for lighting design by using watt per square feet method which are.
This cost equals about 0 35 to 0 70 per square foot of floor space for most buildings.
Please choose proper unit of your room area to help us count led lights lux and watts calculation required per square foot meter inch.
Lux means lumens per square meter and foot candles means lumens per square foot.
In addition to help you better understand what activities are associated with that energy usage the doe has further broken down overall average electricity usage per square foot for commercial buildings into the average amount spent per system i e lighting heating cooling ventilation etc.
It gives these recommendations in the form of average foot candles and lux values.
Industrial spaces often require more lumens per square foot because of the complicated potentially dangerous nature of work being performed.
The list shown below includes ies recommended lighting levels for a selection of industrial commercial spaces.
Both of these are measurements for how much light makes it onto a surface.
Lighting design basics and terminology part two.
A typical window film installation is 7 per square foot of window glass but this varies depending on the type and amount of window film being installed.