How to choose a PSU

1.Pay attention to the internal materials and design of power supplies

The internal components and processes of highquality power supplies directly affect their lifespan and stability

Capacitor: Japanese solid-state capacitors are preferred for their high temperature resistance and long lifespan.

Transformers and MOSFETs: determine output capability and stability.

PCB layout and soldering quality: affecting heat generation and electromagnetic interference.

Heat dissipation structure: Excellent heat dissipation can extend lifespan and reduce   .

like Lemon ET Electronics use high-end automatic surface mount machines, AI AOI testing, and aging testing to ensure consistent quality of each power supply.

2.Pay attention to the conversion efficiency of the power supply (80 PLUS certification)

80 PLUS is an international power efficiency certification standard, with the following levels in descending order:

White → Bronze → Silver → Gold → Platinum → Titanium.

Game/Workstation: Gold or Platinum

The higher the efficiency, the more it means:

Less waste (more energy-efficient)

Lower fever (quieter)

More stable voltage output

3.Wire design and interface configuration

modular design

Full module: All cables can be unplugged and plugged in, making cable management convenient.

Half module: Part of the main line is fixed, taking into account cost.

Non modular: All wires are fixed, low cost but not aesthetically pleasing.

Number and types of interfaces

Mainboard power supply (24 pin)

CPU power supply (8pin/4+4-pin)

Graphics card power supply (6+2pin/12VHPWR)

SATA, Molex interfaces (hard drives, fans, etc.)

Select sufficient number and types of interfaces based on your configuration.

4.Safety and protection circuits

High quality power supplies should have the following protection mechanisms:

OVP (Overvoltage Protection)

UVP (Under Voltage Protection)

OCP (Overcurrent Protection)

OPP (Overpower Protection)

SCP (Short Circuit Protection)

OTP (Over Temperature Protection)

These protections can prevent hardware damage caused by unexpected loads or abnormal currents.