Relationship to electrical engineering[edit] Electronics is a subfield within the wider electrical engineering academic subject. An academic degree with a major in electronics engineering can be acquired from some universities, while other universities use electrical engineering as the subject. The term electrical engineer is still used in the academic world to include electronic engineers.
In the old days there was a gizmo that plugged into an outlet that you then plugged your light set into that made the set blink on & off. It's so simple that it isn't made anymore. All I want to do is make an LED light set blink on & off. I don't want computer control.
Occasionally a section of lights may go out in your Artificial Christmas Tree. This is typically the result of a bulb that has become loose from the socket. When this is the case, a standard light tester designed to check for current is all that is needed to locate the bulb that needs replacing.