Replaces exchange and cross circuits

For us, an old rotary dimmer was in connection with a change-over switch in operation until the old dimmer no longer read off. A visit to the hardware store was sobering, prices for ordinary no-name dimmers are frightening (brand as much as 50 euros). All the more pleased I was when I even have a sensor dimmer a brand manufacturer was here and still an exceptional price! In the small print could be read that this exchange and cross circuits can be replaced, so buy. The "replace" the one must relativize something. Eg if you have, as in the two-way circuit in two places, one of which can be switched from / to, the sensor-dimmer on the site must be used, which has a direct connection to the lamp. On the other switching the toggle switch must be replaced by a button. Big advantage: it can be integrated tens button. So can be rebuilt from several locations off the lights and any dim ... a cool thing.