Opti-UPS UPS GNL1500P (1500VA / 900W) 1050 Joules Line Interactive Uninterruptable Power Supply, LCD, USB (4 battery backup / 2 surge outlets) 2 internal batteries OPTI-UPS GNL1500P keeps your equipments and devices on during power outages. The built in surge protection provides you with peace of mind when you needed the most 1500va / 900w Uninterruptible Power Supply (UPS) single phase battery backup with simulated sinewave Total 6-outlets (4 battery backup + 2 Surge only) (110 / 120 Vac) 1050 Joules Rating, RJ11/RJ45 Surge Protection Topology: Line Interactive, Automatic Voltage Regulator (AVR), Boost and buck AVR for voltage stabilization LCD Indicator display power status (Line, Boost, Buck, Overload), Professional Management Software via USB port to safely auto shutdown your computer, UL Listed / 3 Year Limited Warranty / US Tech Support