A light emitting device driving module comprising: a light emitter comprising a first light emitter and a second light emitter connected to the first light emitter, wherein the first light emitter includes at least one first light emitting diode, LED, and the second light emitter includes at least one second LED; a rectifier which is adapted to receive an AC power and to output a rectified voltage (Vrect) between a first node and a grounded second node; and a controller which is adapted to receive the rectified voltage (Vrect) from the rectifier and to control on/offs of the first light emitter and the second light emitter in accordance with a magnitude of the rectified voltage, wherein the controller comprises a first transistor, which is connected between the second light emitter and the second node and has a base connected to the first node via a first resistor, and at least one second transistor (Q2-Q4), wherein each second transistor (Q2-Q4) is connected in parallel with a respective one of the at least one second LED of the second light emitter and has a base connected to the first node via a respective second resistor (R2-R4), wherein the first transistor is connected to the second node via a third resistor, wherein the light emitting device driving module further comprises a third transistor, which is connected between the first node and the second node and has a base connected to a third node between the first transistor and the third resistor, and wherein, when the LEDs (LED1-LED6) of the first and second light emitter are in an on-state, the LEDs (LED1-LED6) of the first and second light emitters (310, 320) and the first transistor are connected in series between the first and second nodes (N1, N2). a light emitter comprising a first light emitter and a second light emitter connected to the first light emitter, wherein the first light emitter includes at least one first light emitting diode, LED, and the second light emitter includes at least one second LED; a rectifier which is adapted to receive an AC power and to output a rectified voltage (Vrect) between a first node and a grounded second node; and a controller which is adapted to receive the rectified voltage (Vrect) from the rectifier and to control on/offs of the first light emitter and the second light emitter in accordance with a magnitude of the rectified voltage, wherein the controller comprises a first transistor, which is connected between the second light emitter and the second node and has a base connected to the first node via a first resistor, and at least one second transistor (Q2-Q4), wherein each second transistor (Q2-Q4) is connected in parallel with a respective one of the at least one second LED of the second light emitter and has a base connected to the first node via a respective second resistor (R2-R4), wherein the first transistor is connected to the second node via a third resistor, wherein the light emitting device driving module further comprises a third transistor, which is connected between the first node and the second node and has a base connected to a third node between the first transistor and the third resistor, and wherein, when the LEDs (LED1-LED6) of the first and second light emitter are in an on-state, the LEDs (LED1-LED6) of the first and second light emitters (310, 320) and the first transistor are connected in series between the first and second nodes (N1, N2).