Improvement of energy consumption and reduction of energy expenses is generally simple by logical application of physical principles. Measures for reduction of energy expenses do not influence functionality and reliability of electrical equipment, ulitisation and handling are not limited. Reduction of energy costs will be realized with a modified version of Variable Voltage Appliances; they are connected simply between power supply system and load circuit. After an adequate starting time, the output voltage decreases automatically to the optimal operation value. Starting time and operation voltage are adjustable according to the load-circuit requirements; and the output voltage will be controlled by contactors or stabilized with an accuracy of +/- 1% with Variable Toroidal Transformers, depending on kind and modification of installed appliances. The user will not only obtain profit from reduced expenses, but even with increased service life of lightning means in connection with extended inspection intervals as well as with stretched costs for waste deposal and even reduced CO2 emissions. Application The described method is especially suited for central controlled lighting systems with long- time operation mode, e.g. for installation in · Supermarkets · Shopping malls · Offices · Production buildings · Store houses · Parking houses · Road-, street-, or traffic lightning · Public buildings and places etc.

 

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