:: Intellitech ::

The major advantage of lighting planning is to save the cost and energy losses with absolute patch free lighting effect as per the desired location or site.

Lighting Measurements
The main units of measurement for light are the Lumen and Lux.

This is a measurement of the light output from a lamp.
This is a measurement of the light intensity falling on a surface. One lux is equal to one lumen per square meter.

In order to calculate the lux level on a surface we need to consider the following:

Room Dimensions
Luminaries Mounting Height
Height of the Work Plane (desk, workbench or floor)
Reflectance’s of the Ceiling, Walls and Floor
How Dirty will the Room Surfaces and the Luminaries become in Several Years Time
Photometry Data on the Fitting to be Used
Initial Lumen Output of Each Lamp x the Number of Lamps
What will the Lamp Lumen Output be in Several Years Time

These parameters are usually processed in a computer program, which will tell us how many fittings are required for the space. The result will be the "maintenance illuminant" which tells us that the light level will be in Lux after several years of operation. This means that if we measure the illuminant of a new installation the Lux level should be considerably higher than the Lux we designed for.

SO ALL THE LIGHTING PLANS DESIGNED ARE BASED ON THE AFORESAID CRITERIAS, WHICH CAN BE EXPLAINED MUTUALLY BETTER.