1 logo and description; Prevent contact with live parts;

2. Startup of electrical appliances; Input power and current;

3 fever; Leakage current and electrical strength at working temperature;

4. Moisture resistance; Leakage current and electrical strength;

5 overload protection of voltage regulator and related circuits; Abnormal work;

6. Stability and mechanical hazards; Mechanical strength; Structure; Internal wiring;

7 power connection and external cord; Terminals of external conductors;

8. Grounding measures; Screws and connectors; Electrical clearance, creepage distance and solid insulation;

9 heat resistance and flame retardancy; Rust prevention.

I hope I can help you!