Luzifier - Lighting uses a large percentage of energy in every building.  This program lets you specify lamps and fixtures to meet exacting lighting standards, to save energy and to optimize worker comfort and productivity.  You can use the set of fixtures that comes with the program or customize the database to your own needs.  The results are displayed real time like a spreadsheet so you can design at the same time you are typing in the information.  The program is so easy to use that architects and contractors can design their own installations.  All the data and results are printed out in a nice format, or you can access the output file with any word processor and format the information to suit your individual circumstances.  Even building owners can use the program to study space lighting and evaluate new lamps, ballasts, and fixtures.