Voltage stabilizers in Nigeria for protecting appliances from voltage fluctuations. Automatic voltage regulators (AVR) for refrigerators, air conditioners, TVs, and entire house protection. Available in capacities from 1kVA to 50kVA with digital displays, time delay, and overload protection. Essential in Nigerian households and businesses where grid voltage fluctuates between 150V and 280V, ensuring appliance longevity and safety.