Your Enforcer panel has 3 terminals for the mains cable, live, neutral and earth.
the panel itself does not use a transformer it's a power supply like for your laptop and so will not require an Earth connection.
some modules do require an earth connection like the fixed telephone modem which is why it asked for an earth to be connected.
The 'new' (prob at least 18 months ago now) Elmdene Quartz LED strobe is pretty good tbh, this is an upgrade in an existing housing that used to be strobe.
I actually had a 'crazy' one once, not sure if it was an overgassed tube or what, but even in the daytime it lit up half the house like a halo, no kidding. Still works at every service though.
Have to get a vid it's so odd to see.