GEM120 Install Query

Spotted something odd with the install of my GEM120.

When I turn off the EPS for my lights the GEM turns off too, this doesn't seem right to me...

Hi. Difficult to understand. What kit have you got.
How is your EPS wired and what is the EPS feeding (couple of sockets, dedicated essential consumer unit?)
How are you turning off your EPS
Where is the GEM120 located (inside a way in a consumer unit?)