The difference between the Flush Dimmer/Mini Dimmer and the Flush Dimmer 0-10V is, that the Flush Dimmer / Mini Dimmer are connected directly to the light and the dimming is done by the device. While the Flush Dimmer 0-10V is connected to the lights, through the driver. The Flush Dimmer 0-10V, sends a 0-10V signal to the driver, with the command, how much to dim the light. The dimming in this case is done by the driver.  

While the Mini Dimmer and the Flush Dimmer are mostly used in homes, where there are a few (one or two) lights to be dimmed, the Flush Dimmer 0-10V is used to control multiple lights at the same time, e.g. in offices, halls, etc.

The Mini Dimmer is basically the new Flush Dimmer, but it's smaller. Its main advantage is, that it can be connected without the N-phase. Besides it has the signalisation light showing its status and higher security level. It is simpler, with less associations, less parameters, has no extra inputs, has not got the possibility to attach the temperature sensor and it can handle more power than the Flush Dimmer.