the lights can ground through the driver, but that is only grounding (current keeps flowing to the ground, not efficiënt and safe). The circuit breaker in my house will not trip because it only measures the difference between the fase and neutral of the A-C circuit for any leaks.
That looks like an outlet that has a fuse for 250V 10A. I want a fuse/circuitbreaker on the DC Side of the driver that trips the A-C Side if there is any current flowing where it is not supposed to flow (heatsink,armature).