Manufacturing a Power Smart Plug PCBA (Printed Circuit Board Assembly) involves designing and assembling a compact, energy-efficient PCB with integrated Wi-Fi/Bluetooth modules, relays, and safety components like fuses and surge protectors. The process includes SMT (Surface Mount Technology) for precise component placement, followed by reflow soldering. Rigorous testing ensures compliance with IoT and electrical safety standards (e.g., UL, CE). Key features include real-time power monitoring, remote control, and overload protection.