APC Line-R 1000VA 500W Automatic Voltage Regulator 3 Universal Outlets 230V - Black: Reliable ProtectionProtect your sensitive electronic equipment from brownouts and over voltages with APC Line-R automatic voltage regulators (AVRs).Uncorrected voltage fluctuations gradually degrade the life of electronic components, potentiallycausing premature failure.The Line-R not only adjusts v