Power pulse relay with 2 channels, each with 1 normally open contact, not potential-free, 16A/250V AC, 230V LED lamps up to 400W, incandescent lamps 2000W. With light scene control via PC or with wireless switches. Encrypted radio, bidirectional radio, and repeater function can be activated. Standby loss is only 0.8 watts. Installation in the 230V mains connection line, for example in false ceilings and luminaires. Dimensions: 166 mm long, 46 mm wide, and 31 mm high. With cable strain relief. Maximum current as a sum over both contacts is 16A. In the event of a power failure, the switching state is retained. Upon restoration of power, it is defined as switched off. The channels can be learned independently as ES and/or ER channels. Scene control: With one of the four control signals from a button learned as a scene button with a double switch, multiple channels of one or more FSR71NP-2x can be turned on or off for each scene. Central commands from the PC are sent using the building radio visualization and control software GFVS. For this, one or more FSR71NP-2x must be learned on the PC. The rotary switches are used to learn the buttons and, if necessary, to test the 2 channels. For normal operation, the middle and lower rotary switches are then set to AUTO. The upper rotary switch is used to set the EW time (0-120 seconds) for relays or the RV time (0-120 minutes) for pulse switches uniformly for all channels if necessary. When wireless motion brightness sensors FBH (Master) and/or FBH (Slave) are learned, the switching threshold for each channel is set with the upper rotary switch, which determines when the lighting is turned on or off. Settings for the upper rotary switch are according to the user manual. When wireless brightness sensors are learned, the switching threshold for each channel is set with the upper rotary switch, which determines when the lighting is turned on or off depending on brightness.