Solenoid valve application characteristics: connected with several times the inrush current, disconnected with reverse electromotive force, but the power of the solenoid valve for home appliances is generally in a few watts to dozens of watts, usually use 5A relay. 

Typical load: air conditioning four-way valve, washing machine, drain valve, etc.

Lighting application characteristics: light load on the moment there is usually a large inrush current, need to confirm the actual selection. 

Typical loads: refrigerators, microwave oven lighting, sterilizer UV lamps, etc.