Tunable lighting

Office lighting
Lighting in commercial buildings has been the target of energy efficiency programs for years, with the primary strategy one-for-one fixture replacement. However, recent changes to federal standards for fluorescent lamps and more stringent building and product codes, have eroded these program savings. Market changes are forcing energy efficiency programs to look beyond efficacy-based, one-for-one replacement incentives. Research in other Midwestern states shows that LED-lit spaces in commercial buildings are often over-lit, which leads to excess energy usage and dissatisfied occupants. More
Seventhwave Madison
Task tuning can lead to energy savings without loss of occupant comfort. Task tuning is one form of lighting control that can be used in commercial buildings to save energy. It involves dimming lights in a space so that the average illuminance at the working plane is appropriate for the type of use in that space. More
Summary of findings from task tuning research. More