Im in the process of rennovating my house, and Im at the point of re-doing lighting on the ground floor.
Im looking at putting downlights in, removing the existing clusters of bulbs.
The thing that I am not sure about is what kind of density or spacing I should have for downlights.
There are two spaces I would light to light independently, both part of an open floor plan. The first is the "living area" and has rough dimensions of 4.5m by 4m, and a dining area which is roughly 2.7m by 1.8m, laid out something like this:
+--------+ | ||||||| +--+ | | +--------+ | | | | +--------------------+
I have seen suggestions (primarily from one website, as there seems to be little information coming up readily) that the downlights should be spaced roughly equivalent to half the height of the wall, and that you can determine how many you need by multiplying the square footage by 1.5 and dividing by the number of watts of your intended bulbs.
An electrician that I have been using for various jobs has given me a "per fixture" price, so I can basically figure out how many I want and budget the installation myself. But can anyone shed any more light on how to figure this out (excuse the pun)?