Gira compensation module LED ensures dimming quality equal to that of conventional lights. The dimming behaviour of HV LED lamps in trailing edge Gira Tronic and Gira universal dimmers is improved. An afterglow with the power supply switched off is prevented, including when leading edge phase dimmers are used. The compensation module LED can be combined with the described dimmers from all Gira systems: conventional, eNet and KNX dimmers. An afterglow of connected HV LED lamps can also be prevented for switches and button with orientation lighting. For this, the current for the orientation lighting should not exceed 3 mA. The dimming results and the dimming quality may vary depending on the lamps used, the cable lengths, the grid conditions, and other influencing factors. Generally, up to three HV LED lamps can be operated with one compensation module.