A constant-voltage LED strip, which has a plurality of light-generation modules, which form the LED strip by means of a modular arrangement in series, and can be separated or connected from one another at separation points, wherein each of the light-generation modules has: • input and output connection tracks (2, 5) at the separation points of the light-generation module, • at least one LED, or at least one other solid-state means of illumination, • a looped-through network with a V+ terminal and a V- terminal for the power supply of all light-generation modules, preferably at a constant voltage, • at least one electronic current-regulator controller for the regulated energisation of the at least one LED, or the at least one other solid-state means of illumination, from the supply voltage, characterised by • at least one additional electrical line (14.1, 14.2), which in each case on the one hand connects to the electronic current-regulator controller, and on the other hand is looped-through from a secondary part (5.1, 5.2) of a first input and output connection path (2, 5) to a secondary part (5.1, 5.2) of the subsequent input and output connection path (2, 5) of the respectively subsequent light-generation module, for the application of at least one control voltage, • wherein the electronic current-regulator controller is designed such that in the absence of the application of the at least one control voltage, it undertakes another energisation of the at least one LED, or the at least one other solid-state means of illumination, by means other than the application of the at least one control voltage, • wherein the secondary parts (5.1, 5.2) are electrically connected to the electronic current-regulator controller and at a marked connection point, in particular in the form of a switch, which can be separated or connected, can in each case be electrically connected on the light-generation module, with a primary part of the respective light-generation module, wherein the marked connection point of a first light-generation module allows an adjustment of the light output of all interconnected light-generation modules. • input and output connection tracks (2, 5) at the separation points of the light-generation module, • at least one LED, or at least one other solid-state means of illumination, • a looped-through network with a V+ terminal and a V- terminal for the power supply of all light-generation modules, preferably at a constant voltage, • at least one electronic current-regulator controller for the regulated energisation of the at least one LED, or the at least one other solid-state means of illumination, from the supply voltage, characterised by • at least one additional electrical line (14.1, 14.2), which in each case on the one hand connects to the electronic current-regulator controller, and on the other hand is looped-through from a secondary part (5.1, 5.2) of a first input and output connection path (2, 5) to a secondary part (5.1, 5.2) of the subsequent input and output connection path (2, 5) of the respectively subsequent light-generation module, for the application of at least one control voltage, • wherein the electronic current-regulator controller is designed such that in the absence of the application of the at least one control voltage, it undertakes another energisation of the at least one LED, or the at least one other solid-state means of illumination, by means other than the application of the at least one control voltage, • wherein the secondary parts (5.1, 5.2) are electrically connected to the electronic current-regulator controller and