whole house voltage protectors - auto cutoff and stabilizer
amiciSmart 3-Phase Automatic Over/Under Voltage Protector with Over Current Protection, Auto-Reconnect with Phase-Loss and Phase-Imbalance Protection 63A 220VAC (White) https://amzn.to/3BwuMvJ 1) this is not stabilizer - it will cut supply when there is high and low voltage which means all your devices will not work until you get back proper supply. stabilisers from 3kva to 15 kva - 90 volts to 300volts https://amzn.to/4ekavbw