Top seven applications of LED light PCB board in developing country

Top seven applications of LED light PCB board in developing country

There were many applications of LED light PCB board.
But Allen wants to separate developing country and developed ones, because most developed country has use LED light PCB board produces normal products.
This is different from developed, in those developing countries, there were few companies can use LED light PCB board.

Here is the list from internet about the LED light PCB board.

If you have any questions about it, please let me know.
1. Audio equipment: input, output amplifier, balanced amplifiers, audio amplifiers, Preamplifiers, power amplifiers, etc.
2. Power Supply: switching regulator (DC/AC converter, SW regulator and the like).
3. Communication electronic equipment: high-frequency amplifier circuit transmitters (filtering appliances).
4. Office automation equipment: motor drives.
5. Automotive: Electronic ignition regulator (power controller).
6. Computer: CPU board (floppy disk drive power devices).
7. Power Modules: Inverters (solid relay rectifier bridges).
Top seven applications of LED light PCB board in developing country