Marmitek X10 Micro Modules, such as the wired appliance module, can bring X10 automation to devices where it's not feasible to connect them to a plug socket style module.
Marmitek Micro modules are small X10 switching units. Most micro modules are designed to be 'back box mounted' - this means they fit behind a light switch and bring X10 control to that particular switched lighting circuit.
Not sure which micro module you need or just want to compare them have a look at the Marmitek comparison table
This Marmitek X10 Two Wire Dimmer Module with its extremely small size 46x46x17mm - fits behind a light fitting and gives on/off & bright/dim X10 control.
This Marmitek MicroModule can be installed behind a momentary type wall switch and only requires 2 wires - no neutral feed required.
This Marmitek MicroModule can be installed behind conventional wall switches or into wall outlets and can be controlled by normal switches or momentary switches connected to the
module or remotely using the Marmitek X10 (PLC) signal via the mains. It requires a neutral feed wire.
X10 Appliance Module (wired). These units are versions of the popular AM12 Appliance Modules, but instead
of plugging into the wall they come with trailing leads for connection directly
to equipment.
X10 Lamp Module (Wired). These Marmitek units are versions of the popular Marmitek LM12 Lamp Modules, but instead of plugging
into the wall they come with trailing leads for connection directly to equipment.
The Marmitek TWM4 X10 MicroModule is an extremely small ((H = 4.6cm x W = 4.6 cm x D = 1.6cm)) X10 Transmitter for 4 addresses with extended X10 commands.
The SVX10 is a signal repeater that forwards reinforced signals in single-phase systems or additional to the FKX40 in a three phase system. The SVX10 is installed in a junction box.