1. Yakachengeteka uye nekukurumidza kuchaja pasina kukuvadza bhatiri
2. Kupfuura 80% yakazara kuchaji mumaminitsi makumi mana
3. Multiple chengetedzo dziviriro, overvoltage, undervoltage, overcurrent, short circuit, overtemperature, etc.
4. Tsigira QC3.0,QC2.0


