Dimmer for controlling the power consumption of a load connectable to the dimmer, having a first dimmer channel, referred to below as measuring dimmer channel, a second dimmer channel and a third dimmer channel (Kx) each having a channel control facility (S1, S2, Sx), wherein the measuring dimmer channel comprises a measuring facility that is at least suitable for producing information regarding a time of a zero-crossing of a voltage at a site in the measuring dimmer channel, a main control facility that is at least suitable for producing control commands for the measuring dimmer channel, the second dimmer channel and the third dimmer channel (Kx), and a communications connection that is at least suitable for transmitting such control commands from the main control facility to the channel control facility of the measuring dimmer channel, characterised in that the dimmer comprises a first channel communications connection that is at least suitable for transmitting information from the measuring dimmer channel to the second dimmer channel and a second channel communications connection (V23, V (x-1)x), which is at least suitable for transmitting information from the second dimmer channel directly to the third dimmer channel (Kx), and that the two channel communications connections (V12, V23, V(x-1)x) are at least suitable for transmitting the information regarding the time of the zero-crossing of the voltage at the site in the measuring dimmer channel, that the channel control facility or the measuring facility of the measuring dimmer channel is designed to transmit the information regarding the time of the zero-crossing of the voltage by means of the two channel communications connections (V12, V23, V(x-1)x) in each case to the channel control facilities (S2, Sx) of the second dimmer channel and the third dimmer channel (Kx), and that the channel control facilities (S2, Sx) of the second and third dimmer channel (K2, Kx) are designed in each case, based on the received information, to switch electricity in the respective dimmer channel (K2, Kx) accurately and in synchrony with respect to the remaining dimmer channels (K1, K2, Kx). the measuring dimmer channel comprises a measuring facility that is at least suitable for producing information regarding a time of a zero-crossing of a voltage at a site in the measuring dimmer channel, a main control facility that is at least suitable for producing control commands for the measuring dimmer channel, the second dimmer channel and the third dimmer channel (Kx), and a communications connection that is at least suitable for transmitting such control commands from the main control facility to the channel control facility of the measuring dimmer channel, characterised in that the dimmer comprises a first channel communications connection that is at least suitable for transmitting information from the measuring dimmer channel to the second dimmer channel and a second channel communications connection (V23, V (x-1)x), which is at least suitable for transmitting information from the second dimmer channel directly to the third dimmer channel (Kx), and that the two channel communications connections (V12, V23, V(x-1)x) are at least suitable for transmitting the information regarding the time of the zero-crossing of the voltage at the site in the measuring dimmer channel, that the channel control facility or the measuring facility of the measuring dimmer channel is designed to transmit the information regarding the time of the zero-crossing of the voltage by means of the two channel communications connections (V12, V23, V(x-1)x) in each case to the channel control facilities (S2, Sx) of the second dimmer channel and the third dimmer channel (Kx), and that the channel control facilities (S2, Sx) of the second and third dimmer channel (K2, Kx) are designed in each case, based on the received information, to switch electricity in the respective dimmer channel (K2, Kx) accurately and in synchrony with respect to the remaining dimmer channels (K1, K2, Kx).