This Luminous Zelio 1100 inverter is Not a pure sinewave inverter ! Cause whwnever is start my computer and Monitor .My SMPS works like a hell .It to much noice while working and when I start inverter and its charging it make a noice like a hellLike someone is Start a GrinderOr mixer? Shame on their Noice and the noice margin is too highOn inverter ups mode when I start my Monitor it makes a black white strips on itMy monitor is Asus VP 228 Hthis ups inverter is not work on Gaming monitor and I just buy Nvidia GTX 1060TI OC EDITOININVERTER MAKES LAG ON MY MONITOR SCREEN