600 VA Digital Inverter provides protection from overload, short circuit, low battery, over charging, high/ low input voltage, reverse phase etc. The 600 VA Digital Inverter is based on PWM technology and has LED indication and audio beep sound indicating different functions. The 600 VA Digital Inverter is used for mains entry delay protection for home appliances from spike & surges. 600 VA Digital Inverter also gives fuse blown indication and is made of quality grade raw materials that ensure durability.