Apr 7, 2007
In industrialized countries, LED has been practized for decades,
whereas in developed countries it is a fairly recent phenomenon.
Current practice in industrialized countries is the result of
extensive learning-by-doing and trial-and-error processes.
Practitioners in developing countries who want to learn for those
experiences need to understand the evolutionary pattern of LED, and
they need to ask the right questions to understand how current
practice emerged.