Portable space heaters are small, electric resistance heating units. Regardless of the shape, size or type of electric heating element found in an electric space heater, virtually all power drawn is converted into heat. The cost of operating an electric heater depends on how much heat the unit is delivering.ortable space heaters are small, electric resistance heating units. Regardless of the shape, size or type of electric heating element found in an electric space heater, virtually all power drawn is converted into heat. The cost of operating an electric heater depends on how much heat the unit is delivering.
Flexible electronics, also known as flex circuits, is a technology for assembling electronic circuits by mounting electronic devices on flexible plastic substrates, such as polyimide, PEEK or transparent conductive polyester film.
Various electronic components. An electronic component is any basic discrete device or physical entity in an electronic system used to affect electrons or their associated fields. transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. 1  Transistors. 2  Bipolar junction transistor (BJT, or simply transistor) â NPN or PNP. 3  Photo transistor â Amplified photodetector.