No standby loss. State-of-the-art hybrid technology combines the advantages of wear-free electronic control with the high performance of special relays. Very low switching noise. Control indication with LED. The terminal connection layout is identical to the electromechanical relay R12-200. By using a bistable relay, there is no coil loss power and no heating even when switched on. The relay contact can be either open or closed during commissioning and synchronizes with the first operation. This relay is not suitable for feedback with the switching voltage of a dimmer switch. The electronics do not have their own power supply and therefore have no standby loss. Only when the control contact is closed is the microcontroller activated, which switches the bistable relay in the correct direction. When the control contact is opened or the control voltage drops, it switches back.