Lutron’s HomeWorks QS integrates the control of all light, interior and exterior, electric light and daylight. The system also integrates with other manufacturers for audiovisual, temperature and HVAC control for broader control of the user’s home environment while saving energy. Users can create “scenes” with preset light and shade levels that they can recall at the touch of a button. It also integrates with home security systems. In the event of an alarm, interior lights turn on, illuminating a safe exit, while exterior lights flash to attract attention.