Conclusion:

With this built-in dimmer from Eco-DIM you can make your lamp smart in an invisible way. You build it in behind your existing wall switch.

The advantage of this system is that you can continue to use your old lamps and that, if you turn off the switch, this status is also sent to the smart home system.

With a smart lamp you only remove the power and it can no longer be operated via the APP. This can sometimes cause an unpleasant situation.

Both incandescent lamps, LED lamps and halogen lamps can be connected to the dimmer. The maximum power is 250W. Connection is possible with a 2 or 3 wire system. So you don't have to pull extra wires with this dimmer.

What you have to pay attention to when connecting is that you need a pulse switch with a normally open contact, and not an on/off switch. Another point of attention is the installation depth. If you have a somewhat thick switch or a 40mm deep flush-mounted box, it can become a bit cramped.