A lot of families are now installed with power supply, and a power supply switch can control the whole home, use effect also is very good, regular sex also have professional staff to check, turn for security problems, think living in residential area, security will be improved, and doing is quite solid. There is power supply design is according to the size of each family is different, can be multiple choice, can reasonable choose good style, will also be fairly steady in terms of quality, safety performance will be improved, also can reduce some unnecessary problem such as security, feel now power supply design is also more and more good, design is also more authority.