A lamp includes a base, a cooling fan and a circuit board. The base has a coupling portion, with a LED member mounted on the base. The cooling fan has a frame coupled with the coupling portion of the base, wherein the frame receives a driving unit and a fan wheel coupling with the driving unit in a rotatable way and has a first fixing portion. The circuit board has a second fixing portion coupling with the first fixing portion of the frame, with the circuit board electrically connecting with the driving unit of the cooling fan.