This UPS is suitable for the following disturbances: Blackout
Interruptions of electric energy for a time longer than 10 ms
Dynamic Undervoltage
Lowering of voltage for a period of less than 16 ms
Dynamic Overvoltage
The voltage boost for a time below 16 ms
Undervoltage
Lowering the voltage for a time greater than 16 ms
Overvoltage
Raising the voltage for a time greater than 16 ms
Line Interactive (VI)
The Line Interactive, Technology is identified with the initials: VI (Voltage Independent). This means that while operating in Mains the UPS (Uninterruptible Power Supply) output frequency is dependent on the input frequency while the voltage is handled by the UPS (Uninterruptible Power Supply). It is in fact through the stabilizer circuit that these UPS (Uninterruptible Power Supply) are able to protect the connected equipment from persistent voltage disturbances such as overvoltage, and Blackout.
POWER OUTPUT VA (COMPUTER POWER): 900 VA
POWER OUTPUT WATT: 550 W
INPUT
VOLTAGE: 220/230/240VAC
VOLTAGE RANGE: 160~290Vac
OUTPUT
VOLTAGE REGULATION: +/- 10%
OUTPUTS PROTECTED FROM BLACK OUT (SCHUKO): 2
BATTERY
TYPE: 12V / 9 Ah x 1
CHARGING TIME: 4~6 hours to 90%
CONNECTIVITY
USB: Yes
SOFTWARE: Yes for Windows / Mac
DIMENSION AND WEIGHT
PRODUCT SIZE O (L x W x H): 279 x 101 x 142 mm
WEIGHT: 4.2 Kg
ENVIRONMENT
ENVIRONMENT HUMIDITY: 0-90 % RH @ 0-40°C (without condensing)
NOISE LEVEL: < 40dB
https://www.adj.it/prodotto/ups-office-900va-line-interactive/