I am using this inverter since one year, awesome performance. Product is very much fine. No problem at all. Very Fast charging. I checked it with my Desktop giving full load, without using Desktop ups. This product is nice but its outer body of ups is warming so much. The LED display is not given in detail in the booklet to understand about it features, but not bad. Its OK. Its a good working, Nice It shows back hours And Also prevents damage from heavy load.