Patent ID: 8749164

Claim:
An illuminating apparatus, comprising: an illuminating unit comprising: a first light emitting diode (LED) module having a first illuminating set, a second illuminating set, and a first switching circuit controlling a connection relationship between the first illuminating set and the second illuminating set; a second LED module having a third illuminating set, a fourth illuminating set, and a third switching circuit controlling a connection relationship between the third illuminating set and the fourth illuminating set; a second switching circuit for controlling a connection relationship between the first LED module and the second LED module; a detecting unit for detecting an inputted power supply received by the illuminating unit; and a control unit coupled to the detecting unit, the first switching circuit, the second switching circuit, and the third switching circuit, for controlling the first switching circuit, the second switching circuit, and the third switching circuit based on the detected inputted power supply corresponding to a predetermined setting parameter so as to ensure a conducting voltage of the illuminating unit varies according to a variation in the inputted power supply.