Go to

International Energy Agency
http://www.iea.org/

Go to

Energy Conservation In Buildings And Community Systems
http://www.ecbcs.org/
Go to

International Commission on Illumination
http://www.cie.co.at/
Go to

Federation of National Manufacturers Associations for Luminaires and Electrotechnical Components for Luminaires in the European Union
http://www.celma.org/
Lighting Laboratory's frontpage Helsinki University of Technology