The same single-phase charger also has overcurrent protection , which keeps the charging process safe by watching and controlling how much current flows. If the current goes past its preset value, the system shuts off power right away, stopping overheating, burnt wiring, or fire risk. Shenzhen Green Ocean New Energys models use top-grade, high-precision modules that meet international safety rules, so users can trust their equipment. Combined with undervoltage and over-voltage features, this safety trio suits any power supply and delivers steady, worry-free performance day after day.