The Product is working seamlessly wont get any fluctuation or distributions during change over in raw power to UPS Power. The Product is fully proper guidance for installation. Its very easy to use. Though its Size not so big in size which it can fix in any corner of the room. It give Back up to 2 to 3 Rooms with the under and out voltage control. Protect from Equipped with over load. Dip Discharge. Short Circuit.