This modular dimmer is used for switching and regulating dimmable, electronic control gear (ECG) for fluorescent, compact fluorescent or dimmable LED lighting. The device is controlled with a push button, a 0-10 V control or directly on the device. The dimmer can be used with or without the memory function. The dimmer is equipped with a supplementary memory for saving 1 atmosphere. In addition, this dimmer also has a panic function as long as this function is activated, the lighting is set to its maximum. LEDs indicate operation status and error diagnoses.