Abstract: Algorithm for controlling a photon pattern generated by means of a multicolour LED lighting system and inducing by means of said photon pattern a desired response in an organism, said algorithm being in a format executable by a control system of the multicolour LED lighting system and comprising instructions to cause said control system to operate LEDs of the multicolour LED lighting system to emit at least one predetermined varying photon pattern. The instructions define at least the following group of parameters for each varying photon pattern to be emitted: target location, intensity, duty cycle and wavelength band, and variations of at least one of said parameters over time. The instructions are such that the resulting varying photon pattern generated by means of the multicolour LED lighting system induces said desired response in said organism as a result of the combination of said defined parameters and the defined variations thereof.

Abstract: A lamp for use in a lighting assembly comprising a two-wire light string, wherein the lamp is adapted for fitting in a socket of the two-wire light string, and receiving a voltage signal and a superimposed control signal via the two-wire light string and the socket. The lamp includes control electronics provided for the purpose, when the lamp has been fitted in a socket, of receiving voltage via the voltage signal and receiving instructions via the control signal superimposed on the voltage signal; and at least one LED source, of which at least one of an intensity and a colour is adjustable on the basis of the instructions via the control electronics. The control electronics are further provided for receiving an address for the lamp via the control signal superimposed on the voltage signal and for subsequently confirming receipt of the address.

Abstract: Lighting assembly comprising a two-wire light string, wherein sockets are placed in parallel at different positions of the light string, wherein each of the sockets is provided so as to connect a lamp to the two wires, and wherein a controller is provided at one end of the light string, which controller is provided so as to provide a voltage signal over the two wires, and which controller is further provided so as to superimpose a control signal on the voltage signal, wherein the controller further comprises a mains connection and comprises a filter between the two-wire light string and the mains connection, which filter is provided for the purpose of blocking propagation of the control signal from the light string to the mains connection.