... efficiency 0.99 power factor soft starting on grid solar inverterhigh quality and competitive pricetransformerless,own ... with controller,simplify the system,reduce costused for roof system and ground systemwall vertical ... for single phaseUp 3kw for three phasethree types:on grid,off grid,on-off grid typeson-off grid is the special and uniquethe inverter can be used for solar system,wind turbine ...