Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; data processing equipment and computers; electrical and electronic temperature controllers for use with electric heating appliances; temperature controllers in the form of thermostats; heating meters; central heating programmers; electronic control circuits for electric heaters; electric control devices for heating management; solar cells; solar cells for electricity generation; solar energy collectors for electricity generation; solar power cells; batteries and accumulators; parts of the aforementioned goods included in this class; computer software.