Hi-Link HLK-20M12 12V 20W AC-DC Power Converter (AC to DC Switch Power Supply Module) TL866 plus These are Metal Film Resistor

These are Metal Film Resistor with a value of 270 ohm 2W and tolerance of ±5%

This SoC features two CPU cores that can be individually controlled

Basic working principle:

It has a total of six pins

Isolated IGBT/MOSFET gate drive

Hi-Link HLK-20M12 12V 20W AC-DC Power Converter (AC to DC Switch Power Supply Module) TL866 plus These are Metal Film ResistorIt's a Hi Link HLK 20M12 12V 20W AC DC Power Converter. This is a PCB mountable module. It has low power consumption, environmental protection, no load loss, high efficiency, high power density. It has also output overload and short circuit protection. Features It is PCB mountable Low power consumption, environmental protection, no load loss <0. 1W High efficiency, high power density Output overload and short circuit protection Module Power Supply