1. Rated output capacity value
An inverter with a high rated output capacity can carry more distribution loads, but when the load of the inverter is not purely resistive, that is, when the power is lower than 1, the load level of the inverter will be lower than the given value. the rated output capacity value.

2. Startup Features
The inverter should ensure stable startup under rated load. High-performance inverters can achieve continuous full-load startup for many times without destroying components. For their own safety, micro-inverters sometimes choose soft start or current-limited startup.
3. Protection function
Over-voltage, over-current and short-circuit protection are the most basic countermeasures to ensure the safe operation of the inverter. The sine wave inverter with extreme functionality also has functions such as under-voltage protection, phase loss protection and over-temperature alarm.
Fourth, the efficiency of the whole machine
In general, the efficiency of the inverter under the kilowatt class should be 80%-85%, and the efficiency of the 10-kilowatt class inverter should be 85%-90%. The high or low efficiency of the inverter can improve the solar power generation system. Efficient power generation and reduced power generation costs have a critical impact.