Showing the rear of this lantern which has a high voltage pulse transformer in the back with the ballast and PFC mounted remote.

From top to bottom on the left:
The top blue wire is the neutral.
The green/yellow wire is the earth.
The brown wire is the live connection from the ballast.
The black wire going into the bottom terminal is the ignitor trigger connection which I have wired to the mains live via a simple momentary push-to-make push button switch.
On the proper gearboxes the trigger connection would have a timer on it that energises it for 3 seconds when power is applied. I simply press the button for a few seconds until the lamp has struck.

The ballasts I use is a 1000w SON and a 400w MBF ballasts in parallel which gives me close to the required 15 amps that these CSI lamps need.