The RC unit is used for: . Fluorescent lamps: to limit voltage peaks generated when switched off by the chokes integrated in the fluorescent lamps. It is recommended to add an RC unit between L and N to each fluorescent tube. . LED indicators: to avoid flickering or glowing of the low-power LED lamps (non-dimmable, only switching function) in the OFF state with the xComfort dimming actuators (CDAU-01/02, CDAU-01/03, CDAE-01/02, CDAE-01/03), it is recommended to add an RC unit in parallel to the lamp. For more information visit www.eaton.eu/xcomfort. Under no circumstances do RC units replace conventional surge protection!