After following this module students are familiar with a firm understanding of environmental consequences related to energy- and material production. They will be able to present solutions to light related energy optimization and an understanding there off. Students will have a basic knowledge of how a dimmer and PIR sensor work and how they can use a DALI system. Furthermore they will have a basic knowledge of how they can use a Building Management systems to control light and they have the ability to calculate cost of energy in relevant currency