CDP R-UPR508 500VA/250W Line Interactive Battery Backup Uninterruptible Power Supply (UPS), Automatic Voltage Regulation (AVR) corrects minor voltage fluctuations and preserve safe power conditions without using battery, 8 Outlets (Nema 5-15R): 4 battery backup & surge protected outlets, 4 surge protected outlets, surge protection up to 300 Joules, 120 Vac
