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.
Printed Circuit Board vs Flex Circuits It is common for many designers and engineers to think of a flexible circuit as a printed circuit board (PCB) that can bend. While it is true that a flex circuit and PCB perform the same electrical function, the structural and mechanical differences are significant, and not understanding them can result in poor yields and field failures.