The use of three-phase electricity in wedding equipment depends on the type and power of the equipment. According to relevant public information, the use of three-phase electricity in wedding equipment depends on the type and power of the equipment. Generally speaking, large audio, lighting, air conditioning and other equipment need to use three-phase electricity to ensure stable power supply and normal operation of the equipment, while small wedding arrangements, props and other equipment can use single-phase electricity or low-power three-phase electricity.