LED light source comprising - a first input terminal (K 1) and a second input terminal (K 2) for connection to a supply voltage source supplying a low-frequency AC supply voltage with a frequency f, - a rectifier coupled to the input terminals (K 1, K 2) for rectifying the low-frequency AC supply voltage, - a series arrangement comprising N LED loads (LED 1,...,LED 4), a first and a second end of said series arrangement being coupled to a first output terminal and a second output terminal of the rectifier, respectively, the LED light source being characterised in that it further comprises: - control means (S 1,...,S 4, II), subsequently, in a first operating state during half a period of the low frequency AC voltage, making the LED loads carry current, one after another in a first order and in dependence on the momentary amplitude of the low-frequency AC supply voltage when the amplitude increases, and for subsequently making the LED loads stop carrying current, one after another and in a second order, that is reversed with respect to the first order and in dependence on the momentary amplitude of the low-frequency AC supply voltage when the amplitude decreases, and for, subsequently, in a second operating state during half a period of the low frequency AC voltage, making the LED loads carry current, one after another and in the second order and in dependence on the momentary amplitude of the low frequency AC supply voltage when the amplitude increases, and for subsequently making the LED loads stop carrying current, one after another in the first order, and in dependence on the momentary amplitude of the low-frequency AC supply voltage when the amplitude decreases, and wherein the control means (S 1,...,S 4, II) is further equipped with circuitry for changing the operating state at every zero crossing of the low-frequency AC supply voltage. - a first input terminal (K 1) and a second input terminal (K 2) for connection to a supply voltage source supplying a low-frequency AC supply voltage with a frequency f, - a rectifier coupled to the input terminals (K 1, K 2) for rectifying the low-frequency AC supply voltage, - a series arrangement comprising N LED loads (LED 1,...,LED 4), a first and a second end of said series arrangement being coupled to a first output terminal and a second output terminal of the rectifier, respectively, the LED light source being characterised in that it further comprises: - control means (S 1,...,S 4, II), subsequently, in a first operating state during half a period of the low frequency AC voltage, making the LED loads carry current, one after another in a first order and in dependence on the momentary amplitude of the low-frequency AC supply voltage when the amplitude increases, and for subsequently making the LED loads stop carrying current, one after another and in a second order, that is reversed with respect to the first order and in dependence on the momentary amplitude of the low-frequency AC supply voltage when the amplitude decreases, and for, subsequently, in a second operating state during half a period of the low frequency AC voltage, making the LED loads carry current, one after another and in the second order and in dependence on the momentary amplitude of the low frequency AC supply voltage when the amplitude increases, and for subsequently making the LED loads stop carrying current, one after another in the first order, and in dependence on the momentary amplitude of the low-frequency AC supply voltage when the amplitude decreases, and wherein the control means (S 1,...,S 4, II) is further equipped with circuitry for changing the operating state at every zero crossing of the low-frequency AC supply voltage.