An intelligent power saver is an intelligent alternative product for a conventional street lamp power saving device in the market. The intelligent power saver is based on micro computer technology control, integrates an electromagnetic technology, an intelligent control technology and a data control technology into one body, and can be applied to such illumination occasions as a municipality, a square, a harbor, an enterprise and the like, for realizing stable power output and carrying out such functions as adjusting power and illumination, intelligent lamp switching, remote control, intelligent theft prevention and the like according to illumination requirements. By using the intelligent power saver, the running states of a street lamp can be inquired, detected and controlled real time through GPRS, GSM wireless networks, so that high-efficient and low-cost management is realized. The conventional control mode of municipal illumination is quite simple, illumination cannot be adjusted real time according to such situations as an illumination time period, an illumination demand, electrical network fluctuation and the like, the electric energy utilization rate is not yet 65%, and there is a severe waste of electric energy, therefore, there is great energy conservation space.